Naban - Wizards on the Battlefield (EDH / Commander)

Play a lot of cheap wizards with enter-the-battlefield-effects.

Core mechanic is to find a wizard with "return target creature back to hand" and return that same card with its own ETB back to your hand. With the second time it triggers because of Naban, remove something from an opponent or take another of your wizards with an ETB you want to play again. Then repeat.

Then either wipe with cyclone summoner every round until everyone else leaves the game, ends friendship and leaves - or play day of the dragons and either kill everyone with dragons or have a big ETB party when day of the dragons leaves and all the wizards come back to the battlefield...

The hidden infinite combo is Naru Meha, Master Wizard and Cackling Counterpart - Cast Counterpart and then Copy it with Narus ETB. Thanks to Naban you will make 2 copies with different targets. First target is Naru, to copy Counterpart again (2 times) but she will be sacrificed due to legend rule. Second copy targets a non legendary creature you would like to have infinite of.