Brutal Cathar has already made a massive impact on Standard in just a few short weeks: with its combination of great creature types (its still a Human!), solid beatdown potential and built-in removal, it can swiftly send your opponents on a journey to nowhere
If you do, this creature gets +X/+0 until end of turn and deals X damage to the player or planeswalker its attacking
Doubling Season exists in a Standard format that starts with oil counters and poison counters, but what kind of counters do you think well be doubling by the time this rotates back out
Until next time, may your packs always contain Ragavan, Nimble Pilferer, and the slickest foils
What could it be
(The exact restrictions are more specific, but thats the general idea.) Other formats, such as Modern and Legacy, dont rotate at all, meaning the pool of cards that you can choose from grows with each new set release