The Skullspore Nexus (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 - $9.50
LP - $7.50
MP - $5.50
HP - $4.00
DMG - $2.00