>>34796261I like this idea.
I was gonna propose any walls he puts up are permanent. Essentially giving him a Desolate Land/Primordial Sea-style Ability, to the point he might become a staple in OU, but bear in mind he would still have to take a turn to put either wall up, so he's not OP out of the gate.
IIRC, Brick Break used to be rampant in Gen III, and sort of died off. Not a big deal to bring that move back.