As a reaction, which you use when you are hit by a weapon attack that you can see, you can redirect attacks with gusts of air. Roll a d4 and subtract the result from weapon attack rolls against you until the start of your next turn, including against the triggering attack. You can do so after the creature rolls but before any effects of the roll occur.
Additionally, ranged weapon attacks have disadvantage against you until the start of your next turn, including the triggering attack.
You can expend 2 additional mana or psi to roll 2d4.
You can expend 4 additional mana or psi to roll 3d4.
You can expend 1 additional mana or psi to trigger the spell when a creature that you can see within 10 meters is attacked. The attacked creature gains the benefits instead.