Delina, Wild Mage, Harmonic Prodigy, Lightning Runner, and Reservoir Walker

Prerequisites

• Delina, Wild Mage on the battlefield
• Harmonic Prodigy on the battlefield
• Lightning Runner on the battlefield
• Reservoir Walker on the battlefield
• Delina does not have summoning sickness
• An opponent is unable to block and kill Delina and Lightning Runner

Steps

1. Declare Delina and Lightning Runner as attackers, triggering Delina twice and Lightning Runner once
2. Resolve a Delina trigger, creating at least one token copy of Reservoir Walker that enters the battlefield tapped and attacking
3. When the Reservoir Walker token(s) enter the battlefield, they trigger, causing you to get at least and gain at least 3 life
4. Repeat from step 2 for the remaining Delina trigger
5. Resolve the Lightning Runner trigger, causing you to get and pay eight to untap all creatures you control and to get an additional combat phase after this one
6. At the end of your combat phase, each creature token created by Delina triggers, exiling themselves
7. Repeat each combat phase
8. Once you have infinite , you may target any other creature(s) you control

Results

• Infinite combat phases
• Infinite copies of creatures you control
• Infinite creature tokens
• Infinite energy counters
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite untap of creatures you control