Othelm, Sigardian Outcast, Thornbite Staff, and Workhorse

Prerequisites

• Othelm, Sigardian Outcast on the battlefield
• Thornbite Staff on the battlefield
• Workhorse on the battlefield
• Thornbite Staff attached to Othelm
• Othelm does not have summoning sickness
• Workhorse has at least two +1/+1 counters

Steps

1. Activate Workhose by removing all +1/+1 counters from it, adding at least
2. Workhorse dies as a state-based action due to having 0 toughness
3. Othelm triggers, untapping itself
4. Activate Othelm by paying and tapping it, returning Workhorse from your graveyard to the battlefield tapped with four +1/+1 counters on it
5. Activate Workhose by removing all +1/+1 counters from it, adding
6. Repeat from step 2

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB