Yawgmoth, God of Phyrexia

As long as you control seven or more swamps, Yawgmoth, God of Phyrexia has deathtouch and indestructible.
Yawgmoth, God of Phyrexia can't attack or block unless you have the least amount of life.
At the beginning of your upkeep, each opponent
loses life equal to your devotion to Phyrexia.