Null Summoner 142 (Reality Fracture)

When this creature enters, if you cast it, target opponent reveals their hand. You choose a nonland card from it. Exile that card. Threshold — As long as there are seven or more cards in your graveyard, you may cast the exiled card, and mana of any type can be spent to cast that spell.

NM - $1.50
LP - $1.20
MP - $0.90
HP - $0.60
DMG - $0.40