Bloodbraid Elf is a uncommon Creature — Elf Berserker card from Historic Anthology 7 (HA7), collector number 16.
Haste (This creature can attack and {T} as soon as it comes under your control.) Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)