Lifesteal

==Notes==
Multiple sources of Lifesteal do not stack.
For example, if uses his Berserk ability and then a Vampiric Essence, he will have the Berserk status effect for 1 turn and the Vampiric Essence status effect for 2 turns. He will not heal extra on turn 1 for having the two status effects granting lifesteal, nor will he have Lifesteal for 3 turns, as Berserk and 1 stack of Vampiric Essence will both fall off at the end of turn 1.