Activate Griselbrand by paying 7 life, causing you to draw seven cards.
Sheoldred's first ability triggers seven times, causing you to gain 14 life.
Repeat.

Infinite card draw

Infinite draw triggers

Near-infinite lifegain

Near-infinite lifegain triggers

Sheoldred, the Apocalypse

Griselbrand

Activate Griselbrand by paying 7 life, causing you to draw seven cards.
Repeat until you draw from an empty library, winning the game.

Near-infinite card draw

Near-infinite draw triggers

Win the game

Jace, Wielder of Mysteries

Laboratory Maniac

Combos with "Griselbrand"