Quake’s yellow states it reduces damage from enemy powers that affect the whole team by x amount.
I used Riri’s red on a team with quake where the entire enemy team was alive. Quake reduced the attack by x amount. In my opinion this is not correct as Riri’s red does not damage the whole team but only 2 of the 3 characters.
Also, her red in dual target mode will not trigger Black Panther’s defensive passive. I haven’t tried it, but it probably sends Nightcrawler airborne as well.
I’ve tested it indeed with nightcrawler and he does go airborne. Simplest fix would be to update Riri’s description to state her ability would count as team damage. This should only apply in case all 3 enemy team members are alive.
Making it apply as team damage only when three characters are out is more complex, though. That way, it’s team damage when it hits two, half damage to an untargeted member, but not team damage, when hitting one, and targeted damage hitting a solitary character.
For a text only fix, I’d say “… dealing 10673 team damage to the non-targeted enemies, or 21346 damage to the target if no other enemies remain”.