Kelsier, Hope of the Skaa

Flying, Vigilance, Lifelink
Whenever a skaa enters the battlefield under your control, you gain one life for each skaa you control
and each opponent loses that much life.
The first time you gain life each turn, create a 1/1
human skaa creature token with "{t}: you gain one
life and each opponent loses one life."
Skaa you control have +1/+1 and lifelink.