A nerf/rework to Singed's ultimate is long overdue
There is no reason you should be able to press ONE BUTTON and get a buff on SIX stats (AP, armor, MR, MS, hp regen, mana regen) for 25 seconds. 25 seconds.
This is one of those abilities that's been overlooked for a while and should've been cleaned up a long time ago. The "press one button and receive free stats" philosophy is extremely unhealthy for the game (think old exhaust: press one button and do 4 things). Not to mention it encourages completely brainless gameplay for the person playing him.
For those playing against him, there's actually not much counterplay. When your counterplay to his ultimate is "just wait it out bro", then you know something is wrong. When I gank a Singed, I want to fight him and I want to outplay him or have him outplay me. I don't want to gank him and watch him dodge every skillshot with his free movement speed. Maybe I'll land a skillshot, but he won't take dmg from it cuz of his free armor/mr, in fact he'll just heal it up with his free hp regen. And then I'll just eat his empowered poison (free AP) and virtually unlimited poison (free mana regen). So should my approach to ganking him always be just to burn his ult and walk away? That's not fun at all lol.
If they're gonna nerf it, they should either lower the duration (almost half a minute with 6 free stats is way too long) or remove some of the free stats (e.g. MS and the hp/mana regen). IMO, they should just rework it though cuz it really does goes against their balance philosophy. And it's super unfun to play against.