Some of them don't have names, but rate or something.
Equal Blast
Play during a battle. Both players add their bakugan's printed G power with the other bakugan, then they divide by two (Making them equal.)
This one has a unique effect. It's a gate card, and during a battle, both players remove one ability card from play and add another one that isn't in the game.
Doom Card: Vortex
Both players choose a bakugan to be removed from the game.
Doom Card: Overload
This card can only be played if there's a equal amount of red, green, and blue ability cards in your used pile. Take any bakugan not in the game and put them on any possible gate cards. (Battles can occur.)
I might add more.