A few other notable variants include Malevolent Rumble, Winding Way, and Grisly Salvage
Well, except for Green, which has two cards that dont fit at all
Windfall (T1, Ext, S, Block) This card seems fair on the surface, but ends up being completely asymmetrical in practice
In practice, it isnt that hard to play them both together because you can usually find a third colored source to get it onto the battlefield, or enough pips early to use Nykthos for three colored mana, or else its just powerful enough with the three extra pips to be worth that minor inconvenience
No, you cant return tokens from the graveyard because tokens stop existing once they hit the graveyard
Funnily enough, it's not even a budget option, running around $5 for either version