mtg cards like teleportation circle What is the most broken way to take advantage of this card in Commander? then return that card to the battlefield under its owners control. If I have 6 copies

It's been mentioned in conjunction with Grist, the Hunger Tide, which, when exiled with the Cauldron, turns all of your creatures with +1/+1 counters into pseudo-Planeswalkers with Grist's loyalty abilities

Since then, I've spent a lot of time sitting in my studio and slicing up cards for fun

This means that they're far less vulnerable to being raced by unfair combo than Tron

10: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step." Daretti, Scrap Savant can be your commander

What would the metagame look like

If the copied permanent is a token, the new token that's created copies the original characteristics of that token as stated by the effect that created the token