Pentavus, Dross Scorpion, and Brass Infiniscope

Prerequisites

• Pentavus on the battlefield
• Dross Scorpion on the battlefield
• Brass Infiniscope on the battlefield

Steps

1. Activate Brass Infiniscope by tapping it, adding
2. Activate Pentavus's first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token
3. Activate Pentavus's second ability by paying and sacrificing the Pentavite
4. When the Pentavite dies, Dross Scorpion triggers, untapping Brass Infiniscope
5. Resolve the Pentavus ability, putting a +1/+1 counter on it
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite card draw
• Infinite death triggers
• Infinite sacrifice triggers
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Infinite draw triggers