Lightning-Rig Crew doesn't have summoning sickness.
Notable Prerequisites
You have sacrificed at least two artifacts and/or creatures this turn, plus an additional artifact or creature for each time you've cast
Dargo from the command zone this game.
Steps
Activate
Lightning-Rig Crew by tapping it, dealing 1 damage to each opponent.
Malcolm triggers, creating a Treasure for each opponent dealt damage.
Activate a Treasure by tapping and sacrificing it, adding .
Cast
Dargo by paying due to its cost reduction, including its commander tax.
Lightning-Rig Crew triggers, untapping it.
Resolve
Dargo. Then, activate
Evereth by sacrificing
Dargo.
Choose to return
Dargo to the command zone from your graveyard.
Resolve the
Evereth ability, putting a +1/+1 counter on
Evereth.
Repeat.
Notes
If you have a way to kill
Evereth and available, you can do so after putting a significant amount of +1/+1 counters on it to deal damage to each opponent using its second ability.
Results
Infinite +1/+1 counters on a creature.
Infinite artifact ETB.
Infinite artifact LTB.
Infinite commander casts.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature sacrifice triggers.
Infinite damage.
Infinite death triggers.
Infinite storm count.
Near-infinite Treasure tokens.
Near-infinite colored mana.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.