Sazed, Terris Scholar

{2}:Tap another target untapped creature you control. Choose one:
-Sazed gets +X/+0 until end of turn where X is the tapped creature's power.
-Sazed gets +0/+X until end of turn where X is the tapped creature's toughness.
-Sazed gains the keyword abilities of the tapped creature until end of turn.
-Sazed gains the activated abilities of the tapped creature until end of turn.