Aetherflux Reservoir + Cyberdrive Awakener

Prerequisites

You have a way to give Aetherflux Reservoir lifelink. Your life total is at least 50 minus your storm count.

Steps

1. Cast Cyberdrive Awakener by paying {5}{U}.
2. Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn.
3. When Cyberdrive Awakener enters the battlefield, it triggers, causing Aetherflux Reservoir to become a 4/4 artifact creature until end of turn.
4. Give Aetherflux Reservoir lifelink.
5. Activate Aetherflux Reservoir by paying 50 life, dealing 50 damage to any target and causing you to gain 50 life.
6. Repeat step 5.