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 - $21.20
LP - $17.00
MP - $12.80
HP - $8.50
DMG - $4.30