False Hydra

{u}{t}: False Hydra gains hexproof so long as it is tapped. You may choose not to untap False Hydra during your untap step.

{b}: Put a +1/+1 counter on False Hydra.

Remove a +1/+1 counter from False Hydra: Regenerate False Hydra.

If you hear its song. . . Wait, who was I talking to?