Cori Mountain Stalwart
Flurry is a payoff mechanic looking for a cadence, and this is the aggressive read on it: not card advantage, not a token, but a symmetric drain aimed at every opponent each time you chain a second spell, two damage across the table and two life back for you. The reward hits both halves of a Boros clock, damage that closes and life that stabilizes, so the trigger works whether you are racing or grinding. The design tension sits in the trigger condition rather than the body: a fair-rate 3/3 for three is not what you are building around, the two-spell requirement is. That pushes the deck toward a low curve full of cheap interaction and cantrips over a shell of expensive haymakers, and it rewards holding a spell over dumping your hand. Crucially the wording is "each turn," not once per game and not restricted to your own turns: cast two instants during an opponent's turn and it fires there too, which turns a pile of cheap reactive spells into reach you can deploy on their clock. It still triggers only on the second cast of a given turn, so flooding a single turn with five spells does nothing extra; the skill is spacing the second cast to land where it matters. The lineage is the Boros "spells matter" aggro payoff, a role red and white have circled for years without a clean two-color body to hang it on.
