I was playing on Twisted Treeline in a custom game with my wife playing Aetherwing Kayle. Each time that I used Garen's ult, there was a visual issue that I hadn't seen when playing the new skin on Dominion. When I used the ult, there would be a large green overlay graphic on the ult particles. I will check again on the next game, but it persisted for the whole game.
[Game][Minor]Steel Legion Garen Ult visual bug