well, this seems awfully complicated if it's only going to apply to indyzard. if it's for all poketrainer, it still seems a bit insane. the seismic toss alone would be an interesting move rather than additional options within this new option.
either way, landing a move like that should not be easy. if it had lame priority and speed, slower than boozer's side-b, maybe some of this would be justified. EDIT: also, may i suggest that it not simply be a seismic toss...but a flaming seismic toss! unless, uh, you wanted to go so far as to make FSes for them. then it'd be that, or fire blast. anywho...
in consideration of techs: is it possible to allow mario to reverse his down-b? the fludd is a great recovery tool (when it's charged), but having to lose some vertical height just to cape away from the stage takes away this effectiveness some, not to mention how melee falling speed will nerf this technique at the get go. i almost suggested being able to cancel the cape to it at the first couple frames, but a midair stall + a powerful edgeguard tool sounds...
well, it sounds awesome, actually. thinking about it, if the fludd was nerfed a bit, but given the power to be positioned more effectively, that'd be, yes, quite tubular, man.