Illusionist's Bracers + Aphetto Alchemist

Illusionist's Bracers
Aphetto Alchemist

Requires
All permanents on the battlefield. Illusionist's Bracers attached to Aphetto Alchemist. Aphetto Alchemist does not have summoning sickness.
Steps
  1. Activate Aphetto Alchemist by tapping it, targeting itself
  2. Illusionist's Bracers triggers, copying Aphetto Alchemist's ability targeting any other artifact or creature
  3. Resolve both Aphetto Alchemist abilities, untapping it and the second target
  4. Repeat
Results
Infinite untap of artifacts you control. Infinite untap of creatures you control.