Gigaton Hammer leaves the user struggling on the 2nd turn if Encored in to the move, but is able to use the move normally again on the 3rd turn, but struggling again after that etc.
Good as Gold blocks Life Dew, Defog, and Perish Song (only from itself) but doesn't block Haze, will edit in more if I get access to other notable stuff, but most standard targeted status moves, like Encore, Entrainment, Helping Hand, and Role Play for example, seems to be blocked. Mold Breaker bypasses it normally.
Mortal Spin also spins away hazards beside the binding moves outlined in its description and targets both opponents in a double battle.
Toxic Debris is triggered on physical moves, stacks up the regular 2 layers of tspikes, and if hit by a teammate in a double battle it still sends the tspikes to the opposing side.
Rage Fist seems to boost power by 50 BP per hit, triggering on each multi-hit move as well (5 hits=300 BP). No idea if this caps out, I don't think I have anything strong enough to tank that powerful hits. Confusion self-damage also seems to count as a hit. Switching out and fainting does not reset the boost.
Glaive Rush's effects does not persist to the next pokemon if the user switches out.