Rivals' Duel

Sorcery, 3R (4)
Choose two target creatures that share no creature types. Each of those creatures deals damage equal to its power to the other.
They could agree on one thing only: one of them must die.
Illus. Zoltan Boros & Gabor Szikszai

Gatherer Card Rulings [Nov 2009]

• 4/1/2008: The two creatures may be controlled by the same player.
• 4/1/2008: If either one of the creatures leaves the battlefield before Rivals' Duel resolves, no damage is dealt to or by the remaining creature. If both creatures leave the battlefield before Rivals' Duel resolves, the spell is countered for having no legal targets.
• 4/1/2008: If, by the time Rivals' Duel resolves, an effect has caused the two target creatures to share a creature type, Rivals' Duel is countered for having no legal targets.

Format Legality	Legal in Vintage, Legacy, Extended, MTGO Classic Banned in Standard
Printings (1/10)	Morningtide (Uncommon)