Cast Welding Jar either from your hand or from the top of your library by paying 0
Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Activate Welding Jar by sacrificing it.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Welding Jar from your graveyard onto the top of your library.
Repeat.
This ingenious loop turns a fragile 0-mana artifact into a perpetual motion machine by recycling it directly from the graveyard to the top of your library using Arcbound Reclaimer's counter-removal ability. Fortune Teller's Talent is the engine that ties the whole strategy together, allowing you to continually play Welding Jar right off the top of your library thanks to its Level 2 static ability, while Showdown of the Skalds provides a steady stream of +1/+1 counters to fuel the Reclaimer every time that artifact is recast.