■ Dynamo (At the beginning of a battle , or whenever this creature can attack , you may tap this creature . If you do, add this creature 's power and abilities to one of your other Dynamos in the battle zone until the end of the turn .)

■ Whenever this creature attacks , choose one of your opponent 's creatures in the battle zone and tap it. (First you choose which creature to attack , and then you choose which creature to tap .)