Undertaker Eel

When Undertaker Eel enters the battlefield put a +1/+1 counter on it for each island in play.
{u}{g}{t}: Destroy target vehicle
{ut}: Sacrifice an island, put a +1/+1 counter on Undertaker Eel for each island in play. Activate this ability only once per turn.
"YEAA THE BLOODY KRAKEN'S GONE."
- Captian Hoth, Last words