Delina, Wild Mage + Lightning Runner + Harmonic Prodigy + Multiform Wonder

Delina, Wild Mage

Lightning Runner

Harmonic Prodigy

Multiform Wonder

How it works

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 Multiform Wonder that enters the battlefield tapped and attacking.
3. When the Multiform Wonder token(s) enter the battlefield, they trigger, causing you to get at least EEE.
4. Repeat from step 2 for the remaining Delina trigger.
5. Resolve the Lightning Runner trigger, causing you to get EE and pay eight E 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 E, you may target any other creature(s) you control.

This dazzling loop transforms Delina, Wild Mage into a relentless copy machine, fueled by Harmonic Prodigy doubling up her attack triggers and those of your Wizards and Shamans. As Delina attacks alongside Lightning Runner, she creates token copies of Multiform Wonder, whose clever enter-the-battlefield ability floods your pool with enough energy counters to feed Lightning Runner's cost for extra combat phases. Because Multiform Wonder is a Wizard, Harmonic Prodigy even amplifies its energy generation, ensuring you can endlessly untap your board, multiply your creatures, and march through infinite combats.