Lifesteal is an 
Agility Gem. This Defense type Gem can be slotted in the third slot of the Agility attribute tree for a total 13,000 
Gold cost.
Slots 1/2/3/4/5 are at nodes 1, 7, 13, 19, 25 respectively
How to obtain[]
Lifesteal (Gem) is obtained at level 1.
Lifesteal (Gem) can currently be earned only through chests. Higher rarities have a lower chance of dropping.