Superbia, the One of Hubris

Lifelink
When Superbia enters the battlefield, you life
total becomes it's power.
Whenever you gain life, put that many +1/+1 counters on Superbia, the One of Hubris.
Superbia's power and tougness is equal to the
number of creatures you control.
The root of all evil, so deep in it, people question if it is.