Emperor skekSo, the Eternal

Lords of the Crystal-When Emperor skekSo enters
the battlefield, gain control of The Crystal.
Rulers of Thra-As long as you control The Crystal, Skeksis you control get +X/+X, where X is the
number of Skeksis you control.
Behold the Power-At the beginning of each end
step, if you control The Crystal, draw a card.