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.
You typically want to put Obuuns counters on itself to make bigger land creatures, so +1/+1 counter synergies work well in this deck
These archetypes suffer from weaker gold uncommons and/or poor common support, making it difficult to fully realize their themes
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
Its all in service of making as many land drops, and thus Scute Swarm copies as possible