*5th degree Arcane Knight action* With a pale silver aura engulfing your weapon you strike at your target to unleash a powerful burst of light. Make a melee weapon attack. On a successful hit your weapon deals radiant damage in place of any other damage types it normally deals and your target becomes blinded and deafened for up to 1 minute. At the end of the creature’s turn, it may make a Constitution saving throw to end this effect.