Nasty stuff here
Even still, the ability to swap any artifact token (be it Treasure, Blood, Clue or Map) for a Blightsteel Colossus, Sundering Titan or Inkwell Leviathan on turn two means that the Welder is still a tremendously powerful one-mana Goblin
The biggest takeaway here is just how long it took for people to try the dredge mechanic in Modern after the bannings of Golgari Grave-Troll and Dread Return
Thanks for reading, and until next time, stay grandiloquent
if you check out my pre-con upgrade article, you should be able to get a general idea of the direction that you want to take the deck
Gyruda, Doom of Depths works in a similar space, in the same colors, at the same mana value