Hydra of Lerna

When Hydra of Lerna enters the battlefield,
place 3 Head counter on it.
For every head counter on Hydra of Lerna, it gets
+1/+1.
When Hydra of Lerna takes damage, remove 1
head counter.
During your upkeep, if you removed at least 1
head counter from Hydra of Lerna, add 2 for
every 1 removed.