Gives a way to counter-build Celeste ult, Ricochet, McGinnis ult, Vindicta Alch Fire, etc.
One way would be an aura on a cooldown like Scourge, with the damage reduction scaling with the number of allies hit; another would be more like Counterspell where any abilities/items that hit you within a short window have their damage to allies reduced, lasting for 10s or so.
One way would be an aura on a cooldown like Scourge, with the damage reduction scaling with the number of allies hit; another would be more like Counterspell where any abilities/items that hit you within a short window have their damage to allies reduced, lasting for 10s or so.