The new Dinobot characters included in this expansion are Autobots that have a unique option for battling Autobot Robots while in Alt Mode. With the exception of Swoop, each Dinobot character has some variation of You may battle Autobot Robots during your turn each with different restrictions and/or penalties on how it can be done. Grimlock, for example, must pay 1 Energon to battle an Autobot Robot, and if he defeats it, it goes into his discard pile instead of his Vault. The rules for battling Decepticons remain unchanged.