Instant, UU (2) Return target creature to its owner's hand. Then return another target creature to its owner's hand unless its controller pays {1}.1 "We outnumber them! Charge! Charge! Hey, where'd you guys go? Retreat! Retreat!"
Illus. Adam Rex
10/4/2004: The creature's controller gets the option to pay when the spell resolves.
10/4/2004: The two creatures may have different controllers.
10/4/2004: Must target two different creatures.
10/4/2004: You choose on announcement which creature is the one that can be paid to prevent the effect. The payment itself is made on resolution (if at all).