return([[Vomit on the ground around you, healing any undead in the area and damaging anyone else.
Lasts %d turns, and deals %d blight damage or heals %d life.
Creatures standing in the retch also have %d%% chance to loose a physical effect each turn.
Creatures standing in the retch also have %d%% chance to remove a physical effect each turn.
Undeads will be stripped from a detrimental effect while others will be stripped from a beneficial effect.]]):format(t.getduration(self,t),damDesc(self,DamageType.BLIGHT,dam),dam*1.5,t.getPurgeChance(self,t))