Tannyl, Voice of Ancients

Whenever Tannyl, Voice of Ancients becomes untapped, roll a d12.
1-4 | Tannyl, Voice of Ancients gains "{t}: Add {g}{r}" until end of turn.
5-8 | Up to two other creatures you control gain
+2/+2 and first strike until end of turn.
9-12 | You gain life and draw cards equal to half
the result of this roll, rounded down.