N'aix, Gibbering Cannibal

Haste, lifelink
{b/r}: N'aix, Gibbering Cannibal gains doublestike
and hexproof until end of turn.
Sacrifice another creature: N'aix, Gibbering
Cannibal gains +X/+0 until end of turn, where
X is the sacrificed creature's toughness. Activate
this ability only once each turn.