Marshmallow, Persistent Guardian lives up to its name and nature as seen in Frozen by offering a pesky attacker whos hard to get rid of for good
Kirol, Attentive First-Year One of the rare non-black vampires, Kirol, Attentive First-Year has a unique ability copying ability that leads to lots of trouble with commanders like Otharri, Suns' Glory and Caesar, Legion's Emperor with busted triggered abilities
Also at $9 its the cheapest of the Eldrazi titans
Aura Shards can go a long way to solving random problems that might pop up
Track Down will scry 3 and let me reveal the top card of my library and draw it if it's a creature or a land
Anje's Ravager : Attacks each turn if able, and whenever it attacks discard your hand and draw 3 cards