Tweak (mostly reduce) prices of several high-level units

Thanks to The_Gnat for the suggestions:
<https://forums.wesnoth.org/viewtopic.php?p=607792#p607792>

data/core/units/dwarves/Lord.cfg

@@ -13,7 +13,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=54
+    cost=50
     usage=fighter
     description= _ "Clad in shining armor, these dwarves look like kings from under the mountains. They wield axe and hammer with masterful skill, and can hit a target with a thrown hand axe at several paces. Though slow on their feet, these dwarves are a testament to the prowess of their kin."
     die_sound={SOUND_LIST:DWARF_DIE}

data/core/units/elves/Avenger.cfg

@@ -15,7 +15,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=60
+    cost=53
     usage=mixed fighter
     description= _ "The curious name of the elvish ‘Avengers’ comes from a tactic often employed by these master rangers. The enemy is allowed to break through a feint defense, and when the vulnerable troops behind the front line follow, these archers break cover and attack, cutting the supply lines and surrounding the enemy in one fell stroke.
 

data/core/units/elves/Champion.cfg

@@ -15,7 +15,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=55
+    cost=48
     usage=fighter
     description= _ "Those few elves who deliberately hone themselves into weapons of war become something which belies the peace-loving reputation of their race. Dedication and skill are matched with purity of form, and the result is swordsmanship to which few can compare. Even their archery, treated as a secondary pursuit, is masterfully executed."
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/Hero.cfg

@@ -13,7 +13,7 @@
     level=2
     alignment=neutral
     advances_to=Elvish Champion
-    cost=32
+    cost=30
     usage=fighter
     description= _ "Elves, though not warlike by nature, are swift to learn; a relatively small amount of experience will turn an elf from a competent fighter into a master of combat. Those who are honored as heroes are strong with both sword and bow, and their skill once acquired does not fade for lack of practice."
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/High_Lord.cfg

@@ -13,7 +13,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=60
+    cost=56
     usage=fighter
     description= _ "The leaders of elvenkind command an instinctive loyalty from their people that rulers of other races can only envy, and earn it with great mindfulness and wisdom. Quiet and contemplative in times of peace, a High Lord in the full of his wrath is an awesome sight indeed."+{SPECIAL_NOTES}+{SPECIAL_NOTES_MAGICAL}+{SPECIAL_NOTES_ARCANE}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/Marksman.cfg

@@ -14,7 +14,7 @@
     level=2
     alignment=neutral
     advances_to=Elvish Sharpshooter
-    cost=41
+    cost=37
     usage=archer
     description= _ "Elves are wondrously keen-sighted, a gift which contributes to their mastery of the bow. An elf practiced at archery can hit targets that a man couldn’t even see, and can nock a second arrow almost as soon as the first is let fly. Realizing this prodigious skill does come with one cost, that being a lack of practice with the sword."+{SPECIAL_NOTES}+{SPECIAL_NOTES_MARKSMAN}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/Marshal.cfg

@@ -21,7 +21,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=55
+    cost=54
     usage=fighter
     description= _ "The longevity and natural intelligence of elves make them apt for military matters, enough even to counter their general distaste for war. Elves remember things much more clearly than humankind, and can often intuit what others can only be trained to do. Certainly, on those rare occasions when an elf sets his mind to war, the strategy that results is often the work of a master."+{SPECIAL_NOTES}+{SPECIAL_NOTES_LEADERSHIP}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/Ranger.cfg

@@ -14,7 +14,7 @@
     level=2
     alignment=neutral
     advances_to=Elvish Avenger
-    cost=41
+    cost=38
     usage=mixed fighter
     description= _ "Though a man might spend years in the forest, he will never shake the feeling that he is a guest in a realm of which he is not truly a part. With elves, this is quite reversed. Any elf that studies the lore of the woods rapidly becomes a master of them. This, combined with a considerable skill at archery and swordsmanship, is very useful in warfare."+{SPECIAL_NOTES}+{SPECIAL_NOTES_AMBUSH}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/elves/Sharpshooter.cfg

@@ -15,7 +15,7 @@
     alignment=neutral
     advances_to=null
     {AMLA_DEFAULT}
-    cost=55
+    cost=51
     usage=archer
     description= _ "There was a legend of an elf who stopped an arrow by shooting it out of the air with one of his own. It is a testament to the skill of the elves that such a story could be taken seriously. The sharpshooters of the elves have, quite simply, mastered the art of archery."+{SPECIAL_NOTES}+{SPECIAL_NOTES_MARKSMAN}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/goblins/Direwolf_Rider.cfg

@@ -14,7 +14,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=41
+    cost=44
     usage=scout
     description= _ "‘Dire wolves’ differ from the common variety only in size and color. They typically stand taller than a horse at the shoulder, and have an appetite to match. Only a madman would willingly encounter them; but goblins, at great cost to themselves, have managed to tame and ride them.
 

data/core/units/humans/Mage_of_Light.cfg

@@ -15,7 +15,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=64
+    cost=60
     usage=healer
     description= _ "After years of experience, the most devout of white magi develop vast spiritual powers. By strict devotion to the path of the light, they can call upon its aid to chase away the shadows of the night.
 

data/core/units/humans/Outlaw_Fugitive.cfg

@@ -15,7 +15,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=56
+    cost=53
     usage=mixed fighter
     description= _ "Veteran criminals become notorious for both their ruthlessness and ability to elude capture. They can be dangerous in their element, though no match for the sheer numbers that law-abiding soldiery can throw at them."+{SPECIAL_NOTES}+{SPECIAL_NOTES_CONCEALMENT}
     die_sound={SOUND_LIST:HUMAN_DIE}

data/core/units/humans/Woodsman_Huntsman.cfg

@@ -14,7 +14,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=54
+    cost=50
     usage=archer
     description= _ "Hunting is a popular sport of noblemen, but it can also be a livelihood for commoners. Like any other craft, it has men of masterful skill in its practice. Huntsmen know all the tricks of their trade, and are skilled at navigating the wilderness, at tracking, and at the use of the bow. They are a fair shot at moving targets, and targets hiding under brush and cover; a skill wrought from years of practice at shooting game, and one which garrisoned bowmen often lack.
 

data/core/units/humans/Woodsman_Ranger.cfg

@@ -14,7 +14,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=60
+    cost=52
     usage=mixed fighter
     description= _ "Rangers are wild men and wanderers, who have chosen to shun the company of their fellow men for myriad reasons. They have spent the better part of their lives in the thick of nature, and know many of its secrets. They are excellent pathfinders and explorers, and can find food and shelter where other men would find only sticks and stones.
 

data/core/units/khalifate/Batal.cfg

@@ -12,7 +12,7 @@
     alignment=liminal
     advances_to=null
     {AMLA_DEFAULT}
-    cost=60
+    cost=52
     usage=mixed fighter
     description= _ "Batal are the elite of the Muharib, engaging in constant hit and run attacks against an enemy army. Nimble as a goat and strong as a ram, they prefer to coordinate multiple attacks at the same time, sending foes running from their arrows only to be cut down by their axes. Given their penchant for taking on only the most daring missions, Batal are often heroes to the common troopers, an image they do not try to dissuade."
     die_sound={SOUND_LIST:HUMAN_DIE}

data/core/units/khalifate/Hadaf.cfg

@@ -12,7 +12,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=55
+    cost=52
     usage=fighter
     description= _ "Those Qanas who prove to be particularly skilled are formed into units of Hadaf, which are often used to raid enemy depots and towns for supplies. This greater autonomy often means that these horsemen are gone for weeks at a time, returning to camp only for supplies and to pass on news of their exploits."
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/khalifate/Mighwar.cfg

@@ -12,7 +12,7 @@
     alignment=liminal
     advances_to=null
     {AMLA_DEFAULT}
-    cost=65
+    cost=56
     usage=mixed fighter
     [abilities]
         {ABILITY_SKIRMISHER}

data/core/units/khalifate/Mufariq.cfg

@@ -12,7 +12,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=80
+    cost=61
     usage=fighter
     # wmllint: local spelling scrollwork
     description= _ "The Mufariq are eminent horsemen, amassing titles and accolades that are as distinguishing for them as the scrollwork on their armor. Having honed their skill with a lance in years of battle, the Mufariq are an unstoppable force of nature. Fleeing enemies swiftly discover that hills do not deter these riders in the slightest, and the displaced air of a descending mace is the last sound they hear."

data/core/units/khalifate/Rasikh.cfg

@@ -12,7 +12,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=58
+    cost=51
     usage=fighter
     description= _ "Spread across the Khalifate's lands are lonely towers and garrisons that provide shelter to caravans and locals from bandits and monsters. These bastions are defended by the most determined of soldiers, who have often faced off against overwhelming odds only to repel the invaders. In an army they can be trusted to hold any position or line, long after lesser soldiers and men have fled in terror."+{SPECIAL_NOTES}+{SPECIAL_NOTES_FIRSTSTRIKE}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/khalifate/Shuja.cfg

@@ -12,7 +12,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=58
+    cost=52
     usage=fighter
     description= _ "Distinguished for their bravery and skill, Shuja are the leaders among the Khalif's ranks. Their exploits are well known among their cohorts, inspiring soldiers to fight for their cause. Despite this, they are often found leading from the front, taking down their foes with sword and shield."+{SPECIAL_NOTES}+{SPECIAL_NOTES_MARKSMAN}+{SPECIAL_NOTES_SLOW}
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/khalifate/Tineen.cfg

@@ -16,7 +16,7 @@
     alignment=lawful
     advances_to=null
     {AMLA_DEFAULT}
-    cost=65
+    cost=50
     usage=fighter
     description= _ "Qatif-al-nar who have shut out the world for their experiments are given the honorific Tineen, as both a sign of respect and of fear. No longer cognizant of the value of life, Tineen are caught up in the power of their caged fire and likely to test their latest naphtha jar at the first opportunity."
     die_sound={SOUND_LIST:ELF_HIT}

data/core/units/trolls/Warrior.cfg

@@ -13,7 +13,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=42
+    cost=44
     usage=fighter
     description= _ "Trolls typically neither need nor prefer to use any proper armament in combat, as large ‘sticks and stones’ serve them all too well. However, trolls have been seen on numerous occasions clad in rough-shod armor and bearing metal hammers. It is speculated that orcish allies are the source and crafters of these; expeditions into several forcibly-vacated troll holes have shown little evidence of tool use, and certainly no metalworking of any kind. Given how dangerous a troll is with its bare hands, the thought of a troll with proper armament is entirely unsettling."+{SPECIAL_NOTES}+{SPECIAL_NOTES_REGENERATES}
     die_sound={SOUND_LIST:TROLL_DIE}

data/core/units/undead/Skele_Banebow.cfg

@@ -14,7 +14,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=38
+    cost=41
     description= _ "The most powerful of the undead archers invariably end up being those who were themselves archers in their previous life. They wander the fields of battle, guided by the fading memory of their former skill, neither knowing, nor caring what their purpose or foes might be. They are driven only by a malice born of their empty and tortured existence."+{SPECIAL_NOTES}+{SPECIAL_NOTES_SUBMERGE}
     usage=archer
     die_sound=skeleton-big-die.ogg

data/core/units/undead/Skele_Draug.cfg

@@ -13,7 +13,7 @@
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=50
+    cost=47
     usage=fighter
     description= _ "There is little left, in these towering ruins, of the men they once were. Warriors at heart, they are now lost in the dream of unlife; wandering through the battles of their memory and fighting desperately for release, for a peace bought only by strength of arms. And so they struggle; both unthinking, and unrelenting."+{SPECIAL_NOTES}+{SPECIAL_NOTES_SUBMERGE}
     die_sound=skeleton-big-die.ogg