Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite +1/+1 counters on a creatureInfinite +1/+1 counters on Golems you control
How it works
Activate Welding Jar by sacrificing it.
Ich-Tekik's second ability triggers, putting a +1/+1 counter on it and each Golem you control.
Resolve the Welding Jar ability.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Welding Jar from your graveyard onto the top of your library.
Cast Welding Jar from the top of your library by paying 0 life.
Repeat.
This loop turns the humble Welding Jar into an endlessly recycled engine by sacrificing it to trigger Ich-Tekik, Salvage Splicer, which grows both itself and your Golems while feeding counters directly to Arcbound Reclaimer. You can then spend one of those accumulated +1/+1 counters to activate Arcbound Reclaimer, placing the Welding Jar right back onto your library. From there, Bolas's Citadel lets you cast the Welding Jar from the top of your library for zero life, resetting the entire cycle so you can repeat it indefinitely.