Brinelin, the Moon Kraken + Invasion of Arcavios // Invocation of the Founders + Nexus of Fate

Ruthless

Decks

How it works

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Cast Invasion of Arcavios by paying .
When Invasion of Arcavios enters the battlefield, it triggers, returning Nexus of Fate from your graveyard to your hand, or searching your library for Nexus of Fate and putting it into your hand, if needed.
Cast Nexus of Fate by paying .
Brinelin triggers, returning Invasion of Arcavios to your hand from the battlefield.
Resolve Nexus of Fate, causing you to take an extra turn after this one and shuffle it into your library.
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.