If I had to give it a constructive negative, its that group slug isnt exactly everyones favorite archetype to play against and might be off-putting for new players
Outside of mass exile effects like Farewell, its tough to deal with a Hogaak deck because its designed to fight spot removal, counterspells, and wrath effects due to all the reanimator shenanigans going on
How To Play The Deck A Teval, the Balanced Scale Commander deck wants to be self-milling so that your graveyard always has creatures to take out of it, amassing a giant army of creature tokens
Gau, Feral YouthGau, Feral Youth doesn't have to exert any effort to grow bigger and bigger, which feeds into its triggered ability very well
The instant burn that could potentially take out two dorks in the right circumstances or tapping and drawing a card was incredibly versatile, and gave you tools against both aggro or control/combo in your main deck without needing to sideboard later