Junkyo Bell 258/306 (Champions of Kamigawa)

At the beginning of your upkeep, you may have target creature you control get +X/+X until end of turn, where X is the number of creatures you control. If you do, sacrifice that creature at the beginning of the next end step.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50