Crablast

Crablast
Crablast has a bomb on its back, enabling it to use moves like Selfdestruct & Explosion. Apart from that, it looks very much like Krabby.

Evolution
Crablast evolves into Hammerblast by use of a Water Stone.

Origin
Crablast's idea came from one of my LEGO creations. So did Hammerblast's.