Frozen Trench

Frozen Trench enters the battlefield with 13
Melt counters on it.
Whenever you draw a card, remove a Melt
counter from Frozen Trench.
{t}: Add {u} to your mana pool
When Frozen Trench has no Ice counters on
it, Exile it. Create a Blue 13/13 Kraken Horror
token creature with Hexproof and Reach