The Skullspore Nexus 212 (The Lost Caverns of Ixalan)

This spell costs {X} less to cast, where X is the greatest power among creatures you control. Whenever one or more nontoken creatures you control die, create a green Fungus Dinosaur creature token with base power and toughness each equal to the total power of those creatures. {2}, {T}: Double target creature's power until end of turn.

NM - $25.50
LP - $20.40
MP - $15.30
HP - $10.20
DMG - $5.10