This allows for shenanigans with any artifact that has built in cost reduction mechanics like Myr Enforcer or Metalwork Colossus, potentially turning a card that costs nothing into a defensive fortress like Darksteel Forge or a deadly finisher like Blightsteel Colossus for hilariously discounted rates
It became a key component of the version that ruled block, the best version now in Standard and now it is reaching out in Extended not just to Affinity but to other decks as well
Buried AliveBuried Alive accomplishes that task
I built around them both with stuff like Hei Bei, Joo Dee and Buzzard-Wasp Colony too, and then the one mentioned above too
The trigger event happens, then the ability goes on the stack , then it resolves
If all goes well, each will be on the battlefield for you eventually, looping things out of the graveyard