Thran Dynamo

He then says, at GP Boston, I was routinely using Eater Vial to cast three and four mana goblins every turn.

That means that for the drawback of having to use its mana only for creature spells, Eater Vial has the power of Thran Dynamo, which costs four mana.

Match after match came down to vile superiority.

If you have one and your opponent doesn't, they often simply can't keep up with you.

Like, Overload is not a, not good at killing, like, a Mirari or something like that.

It's just not good at killing a lo- you know, a Thran Dynamo.

Yeah.

But you play it because the artifacts that you need to destroy, you usually don't have a lot of time.