Goblin Welder and Sword of the Meek

[sclocke]

I have in play a [card=Goblin Welder]Goblin Welder[/card] and a [card=Sword of the Meek]Sword of the Meek[/card]. In my graveyard is, say, [card=Myr Servitor]Myr Servitor[/card]. (It can be any 1/1 artifact creature.)

I activate the Welder, targeting the Sword in play and the Myr in the 'yard. They swap places. Will the Sword be in the graveyard in time for it to see the Myr coming into play?

I believe it works like this:
The Welder's ability is an exchange, so the Sword gets binned at the same time the Myr comes into play. Since it's all the resolution of one ability, the game won't check for triggers until after the ability is finished. At that point, the Sword is in the 'yard and the Myr has just come into play. Thus, the Sword, in the 'yard, will see the Myr coming into play and come back attached to it.

If this is the way it works, then awesome. If not, please explain what goes wrong where.

EDIT: While double-checking my card links I noticed that the Welder's ability is not an exchange: If both artifacts are legal targets when the ability resolves, the artifact in play is sacrificed, then the artifact in the 'yard comes into play. If this were two separate events (if you sacrificed the Sword to play [card=Trash for Treasure]Trash for Treasure[/card] targeting the Myr, for example) then the trick would work the way I want it to, but I'm not sure how (or if) my new understanding of the Welder's ability changes any of the interaction going on here.

[Carthain]

I believe it works like this:
The Welder's ability is an exchange, so the Sword gets binned at the same time the Myr comes into play. Since it's all the resolution of one ability, the game won't check for triggers until after the ability is finished.

Nope. The game will let anything trigger at any time. They just are never put on the stack until a player would get priority.

... back to your explanation:

At that point, the Sword is in the 'yard and the Myr has just come into play. Thus, the Sword, in the 'yard, will see the Myr coming into play and come back attached to it.

Okay, so you noticed that the welder isn't an exchange (to stop stupid [card=Phyrexian Dreadnought]Phyrexian Dreadnought[/card] shenanigans), but you put the one in play into the yard, and then the one in the yard into play.

As such, the sword will be in the yard and notice the 1/1 artifact creature coming in to play, and thus it will trigger.