Aaridytun Flail (5e Equipment)
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Weapon (heavy flail), very rare (requires attunement)
A disgusting looking flail, covered in blood and grime. This heavy flail is constantly seeping in poisonous fluid.
You gain a +2 bonus to attack and damage rolls with this magic weapon. When you successfully attack a creature, that creature must then make a DC 14 Constitution saving throw or be poisoned until the start of your next turn. If the creature is poisoned, all allies within 60 feet of the creature must then make a DC 14 Wisdom saving throw or be frightened of you until the start of your next turn. After you have poisoned one creature, the flail loses its poison effect as the poison drains away. You can, however, reapply the poison magically as an action to regain the features above.
When this flail is completely submerged underwater, it loses all of the magical effects listed above and the poison cannot be reapplied in the manner described above without taking the fail out of water for 1 hour (after 1 hour from being submerged underwater, the poison can be reapplied as an action).