Alena, Kessig Trapper, Pentavus, and Thornbite Staff

Prerequisites

• Alena, Kessig Trapper on the battlefield
• Pentavus on the battlefield
• Thornbite Staff on the battlefield
• Thornbite Staff attached to Alena
• Alena does not have summoning sickness
• Pentavus has at least two +1/+1 counters
• You control a creature with power three or greater that has entered the battlefield this turn

Steps

1. Activate Alena by tapping it, adding at least
2. Activate Pentavus' first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token
3. Activate Pentavus' second ability by paying and sacrificing the Pentavite
4. Alena triggers, untapping itself
5. Resolve the Pentavus ability, putting a +1/+1 counter on it
6. Repeat

Results

• Infinite LTB
• Infinite death triggers
• Infinite ETB
• Infinite red mana
• Infinite sacrifice triggers