The only thing that prevents Brudiclad from being overpowered is that when going through the token copying phase, you are only copying the base token values, so if you're trying to copy a token that has a base power and toughness of 2/1 but has multiple +1/+1 counters on it, these won't transfer over to the copies, and the copies will still be 2/1.
At the cost of his own life, Zack Fair can move his counters and Equipment to another creature for one mana, which can be exploited via certain Equipment like Mithril Coat
In grindy matchups, it provides extra redundancy by sacrificing to tutor for Superior Spider-Man
You typically want to put Obuuns counters on itself to make bigger land creatures, so +1/+1 counter synergies work well in this deck
Unlike an Humans, an Aggro deck that has fallen out of favor, Murktide is strong against combo decks given its density of counters
"Mastery System Check-In"