Captain Rex Nebula + Aetherflux Reservoir + Vampiric Link

Captain Rex Nebula

Aetherflux Reservoir

Vampiric Link

How it works

1. At the beginning of your combat phase, Captain Rex Nebula triggers, causing Aetherflux Reservoir to become a Vehicle artifact with crew 2.
2. Activate Aetherflux Reservoir's crew ability by tapping Captain Rex Nebula, causing Aetherflux Reservoir to become an artifact creature until end of turn.
3. Cast Vampiric Link by paying , targeting Aetherflux Reservoir.
4. Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn.
5. Resolve Vampiric Link, attaching it to Aetherflux Reservoir.
6. Activate Aetherflux Reservoir by paying fifty life, dealing fifty damage to any target.
7. Aetherflux Reservoir and Vampiric Link trigger.
8. Resolve the Vampiric Link trigger, causing you to gain fifty life.
9. Repeat from step 6.