MAGIC: THE GATHERING
|Type:||Artifact Creature - Human Rogue|
Cascade (When you play this spell, exile cards from the top of your library until you remove a nonland card that costs less. You may play it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Bloodbraid Elf was all the proof we needed that the Cascade mechanic was really, really, good. Make it cheaper, and a blue card, and suddenly you've got the cornerstone of a Legacy deck: Shardless Sultai. It even combos with Ancestral Visions, letting you draw three without having to wait for time counters to come off.