You can pay extra mana to gain extra effects - almost like levelling up in D&D - with the Barbarian Class giving a creature +2/+0 and menace when you roll a die, and its final level giving all of your creatures haste
It's incredibly fun to pilot, and you may be surprised at how well it can hang with opposing top-tier strategies
It currently sits comfortably under $1 on every resale platform, and based on the other key cards in this list, its unlikely that it will go much higher
I put it in the same tier as many trophy cards, and probably above most of them, given the low pop and iconic status
The Stats: A 4/4 Goblin Warlock in Jund (Black/Red/Green) colors
Acidic Slime Convert to Slime Gluttonous Slime Green Slime Miming Slime Mitotic Slime Ravenous Slime Slime Against Humanity Slime Molding Slimebind Slimefoot and Squee Slimefoot's Survey Slimefoot, the Stowaway Slogurk, the Overslime Splitting Slime Voidslime