Mesmeric Orb Most of the powerful mill cards in Magic reward the mill player for enacting their game plan
Holding up just two mana on turn two or three allows you to leave up Counterspell and still make plays on your own turn
It's a really cool implementation of her quick-punching monkish abilities from the videogame, where she is a bit of a combo machine: if you manage to land a blow, you get to then launch a more powerful blow, and then a more powerful blow, and then well, by that point, you probably just won
Multi-Color Planar Genesis Okay, I know Im breaking my own card draw rules a little bit with Planar Genesis, but I think its efficient enough to be included in this list
If you miss with the Hat, the card goes right back on top, so activating the second one will guarantee a hit