The Karma Changes That Riot Didn't Realize They Made
So, I see that you, Riot Games, are looking to buff Karma's Mantra'd E by increasing the shield amount. I agree that Defiance feels like one of the weaker options available under ANY circumstance, but buffing the shield amount will NOT make it feel any better. This is what needs to be done to make Defiance feel like it did in patches past.
Gathering Fire: Now grants half of the passive's reduction whenever Karma shields an ally champion.
Defiance Radius lowered to 500 from 600.
Back when Riotremoved the damage on her shield, it lost the synergy with her passive (which was the goal of the damage in the first place). Defiance used to be the main way that you initiated fights or helped to maintain momentum in the middle of one, but now Soulflare feels like the default initiation (due to just how much it lowers Mantra's CD. It can lower Mantra's CD by a maximum of 30 seconds). The change to her passive to lower Mantra's CD every time she shields someone would make Defiance feel worth it again. (Yes I know the ability's strong on its own)
I could count on one hand how many times I use Defiance in any given game now, and that should not be the case.