Natural Form's Power! Spend one turn getting all three forms out, then every turn as your Power, you get to gain 2 HP, draw 2 cards (or give someone else two cards), AND bite two targets for 2 damage each, all while having DR 1 and getting the rider on every card you play.
I played Natch for the first time last night, and it melted my brain a little, but he's got SO much stuff going on, and being able to ALWAYS do ALL of it - drooooool.....
Managed to have some fun with this earlier - played the Naturalist in the Time Cataclysm. I was already in Rhino Form when Fixed Point came out so used my power to add Croc to the list. Unfortunately there were only two possible ways I could've got Gazelle Form out during that round - the first was via Omni-10's Timeshift, which we tried but I sadly didn't get it (both Gazelle and Croc were possible at that point, as Omni-10 went before me). The second was if Parse, the last hero in the line, had that one-shot which lets another player use a power...but unfortunately she didn't. Still, I spent the entirety of the rest of the game (about an hour or so - we were fighting Skinwalker Gloomy) in boh Croc and Rhino Forms, tanking a load of damage and chomping many things (well okay, mainly Gloomy) :D.
You could also get Bunker playing multiple of the same mode, some would need to be "put into play" instead of "played" but they aren't limited so it would work.
The closest I have come is to "awesome shenanigans" with Bunker and Fixed Point is to plan to play and use Auxillery Power Source to draw cards (as the destruction wouldn't happen) only to realise I was instead trapped in my suit, unable to find the on button and stuck recharging for another turn (Couldn't destroy Recharge Mode for those who can't decipher my narrative).