The Energon Pub

You actually have 3 figures/items that were sold separately in stores.

The weird claw weapon thingy is prime master Megatronus with the Skullgrin pretender armor. Megatronus is the cube-like thing and actually unfolds into a mini robot that can fit inside the claw weapon.

The other 2 are 2 separate legends figures that form Battletrap as the combined mode. The "shirt" is Battleslash and forms its own smaller robot or a helicopter. The "pants" is Roadtrap and forms a smaller robot or blue SUV.

Thank you so much. I couldn’t for the life of me figure out his alt mode and I had no name for searching for instructions.