Doomsday + Commander's Sphere + Bolas's Citadel + Aetherflux Reservoir + Black Sun's Zenith

Prerequisites

• You have at least 11 life.

Steps

1. 1Cast Doomsday by paying , searching your library and graveyard for Bolas's Citadel, Aetherflux Reservoir, two other cards with mana value 2 or less, and Black Sun's Zenith, and then placing the remaining cards on top of your library in the order previously listed and losing half your life, rounded up.
2. 2Activate Commander's Sphere's first ability by tapping it, adding one mana of any color.
3. 3Activate Commander's Sphere's second ability by sacrificing it, causing you to draw a card.
4. 4Cast Bolas's Citadel by paying .
5. 5Cast Aetherflux Reservoir from your library by paying 4 life.
6. 6Cast two other cards with mana value 2 or less.
7. 7Aetherflux Reservoir triggers, gaining you 1 life for each spell you have cast this turn.
8. 8Cast Black Sun's Zenith by paying 2 life and shuffling it into the library.
9. 9Aetherflux Reservoir triggers, gaining you 1 life for each spell you have cast this turn.
10. 10Repeat until your life total is 53 or greater.
11. 11Activate Aetherflux Reservoir by paying 50 life, dealing 50 damages to any target.
12. 12Repeat from step 8.

Effects

• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers
• Infinite storm count