Othelm, Sigardian Outcast + Myr Battlesphere + Clock of Omens + Biotransference + Ashnod's Altar

Othelm, Sigardian Outcast
Myr Battlesphere
Clock of Omens
Biotransference
Ashnod's Altar

Requires
All permanents on the battlefield. Othelm does not have summoning sickness.
Steps
  1. Activate Ashnod's Altar by sacrificing Myr Battlesphere, adding cc
  2. Activate Othelm by paying 2 and tapping it, returning Myr Battlesphere from your graveyard to the battlefield tapped
  3. Myr Battlesphere enters the battlefield, creating four 1/1 Myr artifact creature tokens
  4. Activate Clock of Omens by tapping two Myr tokens, untapping Othelm
  5. Repeat
Results
Infinite creature tokens. Infinite colorless mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite untap of creatures.