Armoured Shiverthorne

Hibernate 3-{b/g}{b/g}{s}{s} (Rather than cast this card
from your hand, pay {b/g}{b/g}{s}{s} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)
When Armoured Shiverthorne enters the battlefield from hibernation, put three +1/+1 counters on it. It has vigilance, trample, and hexproof.