Requires

Chromatic Orrery must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Kellan, Daring Traveler // Journey On must be in hand, or in the command zone. Temur Sabertooth must be on the battlefield. You have at least two opponents who each control at least one artifact. Mana needed: plus enough mana to pay for commander tax, if applicable

Steps

1. Cast Journey On either from your hand or from the command zone by paying and commander tax, if applicable, creating at least three Map artifact tokens and exiling Journey On with the ability to cast it from exile.
2. Activate Krark-Clan Ironworks by sacrificing three Maps, adding six .
3. Cast Kellan from exile by paying .
4. Activate Temur Sabertooth by paying , returning Kellan from the battlefield to your hand.
5. Repeat.
6. Once you have infinite mana, you may forego sacrificing the Maps, and you may use the Maps to put infinite +1/+1 counters on creatures you control.

Results