SotBE S7: use Simple Attack Micro AI to spread poison

data/campaigns/Son_Of_The_Black_Eye/scenarios/07_The_Desert_of_Death.cfg

@@ -40,6 +40,26 @@
                 carryover_percentage=40
             [/gold_carryover]
         [/objectives]
+
+        [micro_ai]
+            side=3
+            ai_type=simple_attack
+            action=add
+
+            [filter_second]
+                [not]
+                    ability=regenerates
+                [/not]
+                [filter_wml]
+                    [not]
+                        [status]
+                            poisoned=yes
+                        [/status]
+                    [/not]
+                [/filter_wml]
+            [/filter_second]
+            weapon=1
+        [/micro_ai]
     [/event]
 
     [side]