Vadrok, Apex of Thunder | Saheeli, Sublime Artificer | Obeka, Brute Chronologist

(and two other cards)

Vadrok in hand.
Chance for Glory in your graveyard.
All other permanents on the battlefield.
One other creature on the battlefield.
({1} magic symbol) ({WU} magic symbol) ({U} magic symbol) ({R} magic symbol) ({R} magic symbol) every turn available.

Mutate
Vadrok onto the extra creature.
Use
Vadrok's mutate trigger to cast chance for Glory from the graveyard, take an extra turn after this one, and gain a thopter token from
Saheeli's trigger.
This token will be your mutate target next turn.
Before the end of turn, pay to activate
Crystal Shard and return
Vadrok to your hand.
Activate
Obeka, Brute Chronologist to exile the lose the game trigger.
Repeat.