In multiplayer formats, including Commander, only a creature controlled by the defending player Master of Diversion is attacking can be chosen as the target, even if your other attacking creatures are attacking different players.
01-07-2013
wotc
The ability will resolve and the creature will become tapped before blocking creatures are declared.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.