Anyway, without further ado: #10: Chromatic Orrery We start with a costly colourless card from M21
It's easy to see why, since it brings the Power Nine into your deck, and allows you to scry one on each attack
It does, however, have some fierce competition, Burgeoning, for instance, offers a similar strong land-playing ability that even beats Exploration in Commander
Using A Whole New World forces each player to discard their hand and draw seven cards, potentially upsetting carefully built hands and throwing opponents off-balance
While this art style of Chatterfang is certainly threatening, it's also a great depiction of what a Squirrel Warrior would look like in an anime plane