Saw in Half + Eternal Witness + Lion's Eye Diamond

Powerful

1,183

Decks

How it works

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Cast Saw in Half by paying , targeting Eternal Witness.
Holding priority, activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding .
Resolve Saw in Half, destroying Eternal Witness and creating two token copies of it with base power equal to half the destroyed creature's power and base toughness equal to half the destroyed creature's toughness, rounding up each time.
The Eternal Witness tokens enter the battlefield, returning Lion's Eye Diamond and Saw in Half from your graveyard to your hand.
Cast Lion's Eye Diamond by paying .
Repeat.

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

1–2 · Exhibition & Core

Spellbook classifies this as Powerful — not for these brackets.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.