Please ban Senna out of ARAM games, or release a hot fix to nerf her to a reasonable ARAM strength!
Extremely long range + AOE healing + able to trigger on-hit effects (for example, Duskblade of Draktharr) from extremely long distance away + AOE rooting + AOE damage + camouflage + AOE shielding + bonus movement speed + basic attack and abilities ignore Yasuo's W
I cannot imagine all of these exist in a single champion, and I cannot imagine how broken the champion is in ARAM, however, unfortunately, it happened...
I understand Riot must make new champions OP so more people would buy them, I also understand the champions were not designed for ARAM so of course there can be balance issues. I just want to suggest maybe Riot could ban Senna for a while in ARAM, until they patch her. Alternatively, do a fix and some ARAM specific nerf on her.
I observed and know so many ARAM only player reroll and dodge/switch account like crazy just in order to get Senna (if you are one of them, sorry, and feel free to downvote this post)... I also experienced myself and heard so many complains from my friend about how bad the game experience was when the other team has a Senna... Riot, please solve this issue...