Prototype Portal + Ugin's Nexus + Krark-Clan Ironworks

238

Decks

How it works

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Activate Prototype Portal by paying and tapping it, creating a token copy of Ugin's Nexus.
Activate Krark-Clan Ironworks by sacrificing the Ugin's Nexus token, adding .
The Ugin's Nexus token is exiled instead of being put into your graveyard, causing you to take an extra turn after this one.
Repeat each turn.

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.