http://mythicspoiler.com/mh1/cards/goblinengineer.html

Goblin Engineer
1R
1/2 goblin artificer

When this etb, search your library for an artifact and put it in your grave.

R, tap, sac an artifact: Return an Artifact with CMC 3 or less from grave to play.

I'm thinking this has implications for Vintage. Can technically find both peices to Vault/Key and put them into play. Makes psuedo Welder 4-8, makes trash for treasure a tinker???? What do others think?

I want to brew some sort of red welder/shops vault key grindstone painter crazy deck.

Ah true, this is a tutor, an uncounterable one with Caverns on goblin, for 90% of the combos in 2 card Monte. Interesting.

I like it for Bolas's Citadel.

First one can move it to the yard for you to trash for treasure it, subsequent copies can remove other ones so you don't hit a 6 mana wall while you try to go off or pull wincons like keyvault or painterstone for you to unearth or whatever.

Daretti, Welder and this make for a pretty nice engine. Entomb hasn't resolved in Vintage like 10 years so this will be interesting.

I like this just on it's own as a lock piece in a Staxx type deck. It's a Trinisphere, its a Null Rod, its a Tangle Wire... Once you have the lock down you can assemble Key + Vault.

This seems pretty good. It's Entomb and Trash for Treasure in 1 card. Turn 1 this with Mox is a high threat. I love it.

The fact that this and goblin welder are both goblins really helps with running Cavern of Souls. Before it just wasn't optimal to run 4 Caverns just for Welder in the fear of Derpstep. But with 8 goblins 4 Caverns seems much more viable, and this costing 2 letting it get around d Derpstep is already a plus. How long before Trash 4 Treasure gets restricted lulz

UR Fayden-Karn-Goblin Stax. You get artifacts from your opponent, your library and your sideboard. I'm excited.

With a lot of these new pitch cards you truly are not locking your opponent out unless you get Karn and lattice, but I think with the inclusion of this guy you can do a main deck lattice and 1 in the board and actually reasonably make that happen.

@protoaddict Lattice is even not useless on its own since it makes Goblin Welder able to destroy PWs

I'm really enjoying this set so far which is full of "What would a Vintage staple look like if we didn't mess up the design the first time."

This is the best example. Costing 2 and having an activated ability of 1 is strong, but reasonable. And Welder, nor the color pie or abilities in general, are meant to just permit exchanges in the opponent's graveyard.

That said, I would have never thought of adding a built-in Entomb, and I think it's great flavor!