So what happened here is that Kalista got an assist on his allied Maokai.
Kalista got ulted by Renata, and she then got an attack off on Maokai after the Renata ult had just worn off. This makes the damage be credited as hers, allowing her to get the assist on that kill (and the gold for it). You can also kill your ally that way.
It’s an older bug, I encountered it one year ago, and I think there might have been one extra condition to it (I remember we ran tests on that but I don’t remember the outcome). The condition would be dealing damage that wouldn’t be exactly the attack’s (ie on-hits or Collector or something like that).
Senna also damaged Maokai, but she was still Renata-ulted when her attack landed.
So what happened here is that Kalista got an assist on his allied Maokai.
Kalista got ulted by Renata, and she then got an attack off on Maokai after the Renata ult had just worn off. This makes the damage be credited as hers, allowing her to get the assist on that kill (and the gold for it). You can also kill your ally that way.
It’s an older bug, I encountered it one year ago, and I think there might have been one extra condition to it (I remember we ran tests on that but I don’t remember the outcome). The condition would be dealing damage that wouldn’t be exactly the attack’s (ie on-hits or Collector or something like that).
Senna also damaged Maokai, but she was still Renata-ulted when her attack landed.