Knight of Valor

Flanking was Mirage block's contribution to combat math, a triggered keyword that punished ground creatures for the temerity of blocking, and most of its carriers stopped there: the trigger fires once, shrinking the blocker by -1/-1, and nothing more. What sets this Knight apart is the activated half, which takes the same flanking math and lets you fire it again on demand. The ability shrinks every non-flanking blocker by another -1/-1 for the turn, so a creature that walls the 2/2 body expecting to trade can find itself stacked into oblivion when the manual debuff lands on top of the flanking trigger. The design logic is to convert a passive defensive deterrent into an active offensive threat: the keyword discourages blocks, and the activation makes blocking actively lethal for the small creatures most likely to chump. The "only once each turn" clause is the pressure valve that keeps it honest, capping the manual shrink at a single application so the card cannot strip an entire defensive line by itself in one combat. The result is a beater whose 2/2 frame undersells how it behaves in combat: it asks defenders to bring something genuinely larger than a Knight to stop it, then taxes them again if they try.