mtg playing cards from exile Rules Text: copy, cast, exile, instant, 52 put that card onto the battlefield tapped Path to Exile

If you are splashing black in your goblin deck it is for specific tools not generic cheap filler which is all this would be at best in a goblin deck

There's no way to verify it overall, but of the five most recent Nath decks (again using the Recent Decks feature on his page), three of the five have zero recursion, zero ways to sacrifice the body for value, and zero OverrunOverrun-type effects that would utilize Ewit's body

That means returning it to play or casting a new one gives you access to the same cards exiled by the first

So what does our final deck look like

Stitch, Abomination is an inkable character that costs six ink to play

Eleven mana is the sweet spot, letting you blast three different opponents for 15 damage each