Mirror-Mad Phantasm + Machine God's Effigy

Ruthless

Decks

How it works

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Cast Machine God's Effigy by paying . Choose to have it enter the battlefield as a copy of Mirror-Mad Phantasm, except it is an artifact and not a creature.
Activate Machine God's Effigy by tapping it, adding .
Activate Machine God's Effigy by paying , shuffling it into your library and then milling your entire library due to there not being a card named Mirror-Mad Phantasm in it.

In which brackets is this combo allowed, per Spellbook's Ruthless tier?

1–2 · Exhibition & Core

Spellbook classifies this as Ruthless — not for these brackets.

3 · Upgraded

Spellbook classifies this as Ruthless — not for these brackets.

4–5 · Optimized & cEDH

All combos are allowed.