Selvala Heart of the Wilds 70 (The List Reprints)

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power. {G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

NM - $12.10
LP - $9.70
MP - $7.30
HP - $4.90
DMG - $2.50