This is especially the case for decks that dont have access to Blue mana, where it can be especially advantageous to wield a surprise clone effect in colors your opponents may be unprepared for
Noxious Gearhulk lets your Traverses access a removal spell while also giving you access to some lifegain against aggressive decks, which both significantly expand the utility of our toolbox for the low cost of one slot
On top of that, the little Spybug gets +1/+1 every time you surveil, steadily growing over the course of a game and dealing more and more damage as you cast spells
But for a 5-mana commander, Id prefer a card that stands on its own and doesnt require other cards to do things after it enters
Tier 1 Exhibition To reiterate, Tier 1 is the LOWEST tier among the prototype Commander matchmaking system
The cards themselves are good, too