Sphinx of Forgotten Lore

Creature — Sphinx

Flash (You may cast this spell any time you could cast an instant.)

Flying

Whenever this attacks, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to that card's mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Legality

Format	Legality
1v1 Commander	Legal
Alchemy	Legal
Arena	Legal
Block Constructed	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Gladiator	Legal
Highlander	Legal
Historic	Legal
Historic Brawl	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Modern	Legal
Modern Beyond Horizons	Legal
Oathbreaker	Legal
Pioneer	Legal
Planar Constructed	Legal
Pre-release	Legal
Standard	Legal
Standard Brawl	Legal
Vintage	Legal