Mana dorks creatures that tap for mana (Llanowar Elves, Birds of Paradise)
Planar Disruption Planar Disruption scores some points for its Pauper legality, but it will in all likelihood be the most Cubed card from Phyrexia: All Will Be One
While resolving Wicked Guardian's triggered ability, you can't have it deal 2 damage multiple times or to multiple creatures to draw more cards
Back in the day I had the rep of designing cards that were far over the power curve
Angrath is still trying to get Huatli to join his cause (to disable Ixalan's anti-planewalking magic), and he's extremely straightforward and tactless about it: Yelling on top of his lungs to get her attention, yanking her with chains to stop her from running away, and this gem at the end
To unlock his full potential, you have to transform him by using all four bending types in a single turn