Gaiabreaker Archfiend

|Gaiabreaker Archfiend|???|????|Rock/Synchro/Effect|Dark|8||2700|2300| 1 tuner + 1 or more non-tuner monsters. This card cannot be returned by card effects. Once per turn: you can target 1 face up card on the field; flip that target face-down (if that target is a monster, it is flipped face-down in Defense Position). You must control no set cards to activate and resolve this effect. While you control a set card: You can discard 1 card to target 1 set card your opponent controls; destroy that target. Set Spell and Trap cards cannot be activated in response to this effect.|

returned to where?

The Wanderer wrote:returned to where?

hand and top of the deck. "cannot be returned" is to generalize both terms although even extra deck monsters get returned to the "hand" or "top of the deck" it still automatically returned back to the Extra deck via ruling.

This is like a badass version of Rumbler Tumbler. Nice stuff. But i personally think it's a little too strong for a generic lv8 synchro.