Regigigas

Trample, Reach
This spell can't be countered.
Regigigas enters the battlefield with 18 -1/-1
counters on it.
At the beginning of your upkeep, remove a -1/-1
counters from Regigigas, then do it again.
As long as Regigigas has no -1/-1 counters on it,
it gains Indestructible, Basic Landwalk, and
Protection from Opponents.