Daretti is one of them, and its mainly because his -2 essentially reads as Sacrifice a treasure: recur target artifact from your graveyard. This alone makes him worthy of a place on this list, over the likes of Goblin Welder, Scrap Mastery and Ardent Elementalist because he also lets you see more cards
Yeah, you don't need to have Vigor out to use Blasphemous Act if you don't want to, in case someone else's board is getting ridiculous
Then, at the start of combat on your turn, you get to reanimate a Pirate creature from your graveyard with a Finality counter on it
Its low power and Avacyn-like effect that gives your other permanents indestructible also means it can see play in decks that care about low-power creatures like Terra, Herald of Hope, Alesha, Who Smiles at Death and Nethroi, Apex of Death