Trying to keep pace with a Hierarch when playing a highly aggressive deck is a head slumping experience, and due to the lack of competition most decks with access to the colored mana would choose this over other creatures in the same price range
You need to get counters on Anim, and if you do, the gnome-storm attack and Voldaren Thrillseeker sac seems like enough to win
Wormfang Crab (Odyssey/Torment/Judgment) The Crab came with a hefty drawback - your opponent got to zonk any problem card of their choice from your side of the board
Mental Misstep 13
Once a creature is renowned, the next time they would deal combat damage to a player you get to double the number of +1/+1 counters on it, helping them deal more and more damage every time they attack
Speaking of fixing your mana, Temple of Triumph, Temple of Abandon, and Temple of Plenty are great for that, and theyre very cheap