Xelthar, the Chaos Bringer

When Xelthar enters the battlefield, you may create X 1/1 black Hydra creature tokens where X is equal to the number of lands you control. Then put X-3 +1/+1 counters on each token.

Whenever a Hydra you control attacks, you may choose
one —
•Double the number of +1/+1 counters on it.
•It gains flying and trample until end of turn.

“With every head that falls, two shall rise to claim dominion over all.”