Altar of Dementia + Puppeteer Clique + Spark Double

Mana needed: {3}{U}

UB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast Spark Double, choosing to have it enter as a copy of Puppeteer Clique.
  2. Resolve its ETB trigger.
  3. Sacrifice it to Altar of Dementia targeting an opponent.
  4. Persist triggers, returning Spark Double with a -1/-1 counter, which is removed because of the +1/+1 counter that Spark Double enters with.
  5. Repeat to get every creature out of each opponent library and mill them all out.

What the combo produces