Seal Hideaway

Sub Base enters the battlefield tapped unless you control 3 or more seals.
{t}: add {w} or {u} to your mana pool.
If a Seal creature was cast this way, when it enters
the battlefield, it enters with a +1/+1 counter.
Invisibwe to wadaws, check. Infinite wife suppowt,
check. Missiwes stwong enough to bwow up Canada,
check.