Urabrask, Furnace Warden

Urabrask, Furnace Warden gains First Strike
if his power is 8 or more, and Trample if his
power is 12 or more.
At the beginning of Combat Urabrask, Furnace
Warden gets +X/+3, where X is the number
of artifacts in all graveyards.
Discard an artifact, Urabrask, Furnace Warden
gains Indestructible.