Your commander is on the battlefield and doesn't have summoning sickness.
Grafted Exoskeleton is attached to your commander.
Notable Prerequisites
Your commander has power 10 or greater.
An opponent cannot block your commander.
Steps
Deal combat damage to an opponent using your commander, which will get at least ten poison counters due to its infect. This will cause the opponent to lose the game due to having ten or more poison counters.
Kediss triggers, causing your commander to give each other opponent at least ten poison counters due to its infect. This will cause each opponent to lose the game due to having ten or more poison counters.
Results
Each opponent loses the game.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.