Korvold goblins fringe

So I am fairly new to magic. About 5-6 months. I am looking to build a fringe cedh deck to play against my friends decks. I currently run a korvold dragon/treasure deck and it's probably about a bracket 3(i have a list that should be fairly up to date.) I want to tear that deck apart and put Ziatora at the helm. Then make korvold into a goblin deck. First question. Is korvold goblins gonna be viable at that power level?

If so what kind of cards and combos are gonna help this deck to play at this level?