Sorcerer's Broom + Ashnod's Altar + Chatterfang, Squirrel General

Decks

How it works

Use Ashnod's Altar to sacrifice another creature, or sacrifice a permanent by any other method.
Sorcerer's Broom triggers, causing you to pay to create two creature tokens due to Chatterfang.
Activate Ashnod's Altar twice by sacrificing the Sorcerer's Broom tokens, adding .
Sorcerer's Broom triggers twice, and each Sorcerer's Broom token triggers once.
Resolve all but one trigger, choosing not to pay.
Resolve the final trigger, causing you to pay to create two creature tokens.
Repeat from step 3.

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

1–2 · Exhibition & Core

Spellbook classifies this as Spicy — not for these brackets.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.