Although there are thousands of unique cards, some are incredibly common
Skithiryx, The Blight Dragon A scary dragon that's almost impossible to block, as long as you've got the mana to regenerate it, Skithiryx doesn't offer as much value as the other cards on this list, but it represents a formidable and hard to remove threat all the same
Arwen Undomiel FromTheShire: If you're building the new blue green Elf scry archetype, you're probably including this because it's not bad and both abilities play in to your game plan, but it's not exactly great either
Ashiok, Wicked Manipulator provides card draw and poops out loads of tokens that can grow really large over the course of a longer game
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When this creature enters, gain control of target creature with power less than this creature's power for as long as you control this creature