Hyde's Tomb

This land enter the battlefield with 3 counters
on it. At the beginning of your upkeep remove
a counter on it. When it no longer have any
counter, unleashed this land.
{t}:Add {g}. If this land is unleashed, add {b} too.
Later I should grow to a strength and ingenuity which
might enable me to unfasten the heavily chained door;
but until then I would do better by conforming to what seemed the will of Fate.
The Tomb—H. P. Lovecraft