Creature - Human Wizard 5/5, 4RR (6) {3}, {T}: Tap target creature you control and target creature of an opponent's choice he or she controls. Each of those creatures deals damage equal to its power to the other. The magus still hears the roar of the crowds. They're gone, but the will to compete remains.
Illus. Thomas M. Baxa
2/1/2007: If either target leaves the battlefield before the ability resolves, the ability taps the remaining target, but no damage is dealt. If both targets leave the battlefield, the ability is countered.
2/1/2007: Magus of the Arena's controller always chooses his or her creature first.
2/1/2007: If an effect changes the targets of this ability, the second target can be changed to any creature the chosen opponent controls. The choice of opponent can't be changed.
2/1/2007: Tapped creatures can be targeted. Tapping them again will do nothing, but they'll still deal damage.