Typhoon Fan

Weapon (fan; see text), rare (requires attunement)

Each of the half-dozen banana or palm leaves or broad feathers that are woven together to create this fan are as strong and sturdy as steel. This fan is a weapon that deals 1d4 slashing damage, has negligible weight, and counts as a monk weapon for purposes of a monk’s martial arts. You gain a +1 bonus to attack and damage rolls made with this magic weapon. A typhoon fan has three charges. When wielding the fan, you can create a massive torrent of wind as a bonus action immediately after using your action to attack. This creates a 5-foot diameter line of wind that starts in the attacked creature’s square and moves away from you. Any creature caught within this line (including the target of your attack) must make a DC 15 Constitution saving throw or take 4d6 points of bludgeoning damage and be knocked prone. A successful saving throw halves the damage and prevents a creature from being knocked prone. Creatures under the effect of freedom of movement (or similar magic) and elemental creatures made of air (at the GM’s discretion) are unaffected by this attack.

The typhoon fan regains 1d3 expended charges daily at dawn.