Infinite combat phasesInfinite copies of creatures you controlInfinite creature tokensInfinite energy countersInfinite creature ETBInfinite creature LTBInfinite mana creatures you control can produceInfinite untap of creatures you control
How it works
Declare Delina and Lightning Runner as attackers, triggering them each twice.
Resolve a Delina trigger, creating at least one token copy of Bristling Hydra that enters the battlefield tapped and attacking.
When the Bristling Hydra token(s) enter the battlefield, they trigger, causing you to get at least EEE.
Repeat from step 2 for the remaining Delina trigger.
Resolve the Lightning Runner triggers, causing you to get EEEE and pay eight E to untap all creatures you control and to get an additional combat phase after this one.
At the end of your combat phase, each creature token created by Delina triggers, exiling themselves.
Repeat each combat phase.
Once you have infinite E, you may target any other creature(s) you control.
This explosive synergy turns a single attack phase into an endless cycle of devastation, supercharged by Wulfgar of Icewind Dale doubling all of your attack-triggered abilities. When Delina, Wild Mage charges into battle alongside Lightning Runner, Wulfgar's presence ensures both attackers double-trigger, flooding the board with copies of Bristling Hydra that enter the battlefield attacking and immediately generate a steady stream of energy. That influx of energy feeds Lightning Runner's ability to untap your entire team and grant you an additional combat phase, allowing Delina and her cloned army to repeat the spectacle indefinitely.