Aetherflux Reservoir + Xenic Poltergeist

Aetherflux Reservoir

Xenic Poltergeist

How it works

1. Activate Xenic Poltergeist by tapping it, causing Aetherflux Reservoir to become an artifact creature until end of turn.
2. Give Aetherflux Reservoir lifelink.
3. Activate Aetherflux Reservoir by paying 50 life, dealing 50 damage to any target and causing you to gain 50 life.
4. Repeat step 3.

This clever loop turns Aetherflux Reservoir—normally just a payoff for storm counts—into a self-sustaining win condition by leveraging Xenic Poltergeist's ability to turn it into an artifact creature. Once Aetherflux Reservoir is animated and gains lifelink from an outside effect, paying 50 life to activate its lethal damage ability immediately triggers a life gain of 50 through lifelink, neutralizing the cost and leaving you right back where you started. Because the reservoir’s activation has no once-per-turn restriction, you can simply repeat this process to deal infinite damage and trigger infinite lifegain.