Balefire Dragon

A finisher that punishes the board for letting it through. The flying body is the easy part: seven mana for a 6/6 evasive threat has never been special. The trigger is the design. Connect once and every creature your opponent controls eats six damage, which turns a single unblocked swing into a one-sided board wipe that scales with the dragon's own power. The structure rewards the things red was already doing: pump it, double-strike it, give it trample, and the wrath gets bigger while the clock gets shorter. The clause is deliberately asymmetric in scope (each creature that player controls, not yours) so it never threatens your own developed board, and deliberately gated behind combat damage so the opponent gets a window to chump, remove, or race before it ever fires. That gate is the whole tension: the card does nothing the turn it lands, and everything the turn it isn't answered. It sits at the high end of red's traditional dragon lineage, the part of the curve where mono-red and big-mana ramp decks want a single card that closes the game and clears the way at the same time. Plenty of seven-drops kill a player on their own; this one removes the reason they were still standing.