UtBS: add special note

[ci skip]

data/campaigns/Under_the_Burning_Suns/units/quenoth/Sun_Singer.cfg

@@ -22,6 +22,7 @@
     description= _ "Faerie and elven magic have oft been aptly associated with life, from which they draw the majority of their power. However, with the death of much of Irdya’s wildlife, the Quenoth Elves were forced to seek another source for their sorcery. In time, they learned how to harness the power of the twin suns, Sela and Naia, which razed the once sprawling forests of Irdya to ashes, but still spring the energy that sparks all life. Those who master this new form of magic sing of the dual nature of these embodiments of fire: flames that are both life and life’s demise."
     {NOTE_UTBS_HEALS}
     {NOTE_MAGICAL}
+    {NOTE_ARCANE}
     die_sound={SOUND_LIST:ELF_FEMALE_HIT}
     [attack]
         name=touch

data/campaigns/Under_the_Burning_Suns/units/quenoth/Sun_Sylph.cfg

@@ -25,6 +25,7 @@
     description= _ "In times past, those who stepped beyond the boundary of the worlds of elf and faerie were called Sylphs, mystics with unparalleled knowledge of the secrets of the natural sphere. However, in the harsh new world, the path into the realm of the faerie became no longer a journey into the heart of nature, but a diverging path between light and darkness. Those elves who embrace the burning suns as the fulcrum of life and death learn also to harness their power, transforming into beings imbued with radiant fire. These Sun Sylphs very much embody the power that they wield: light that heals and protects, and flames that smolder with destruction."
     {NOTE_UTBS_HEALS}
     {NOTE_MAGICAL}
+    {NOTE_ARCANE}
     {NOTE_ILLUMINATES}
     die_sound={SOUND_LIST:ELF_FEMALE_HIT}
     [attack]

data/campaigns/Under_the_Burning_Suns/units/undead/Undead_Horseman.cfg

@@ -32,6 +32,7 @@
     cost=19
     usage=scout
     description= _ "Once great warriors across the plains, these mounted riders atop their skeletal horses were raised from the sands by unholy magic to spread fear and destruction."
+    {NOTE_DEFENSE_CAP}
     die_sound={SOUND_LIST:SKELETON_DIE}
     [attack]
         name=axe