Only time will tell but I don't think its enough. The hero has too many tools that are too good throughout the entire game.He was massively nerfed by increasing the cost of Raze from 75 to 90. That reduces his early game farming efficiency a fuckton. A lot of SF's strength is his ability to go in the jungle, double/triple raze a neutral camp, go back to lane, raze it twice, drink his bottle, send it back and get it back when the next camps spawn and so on. With the new mana costs, it'll be a ton harder to do(also bottle was nerfed). Unless he gets an arcane rune, then it's farm all the jungle ez.
SingSing was playing him as a split pusher on stream. Midas (since your split pops w/ it ready), radiance, octarine, manta, bots, etc.Maybe I'm just seeing this wrong, but I can't justify Arc as a carry. I seem him more as an aggressive support that semi-carries at best. I tried playing him straight carry with mixed results (mostly from people just not knowing I assume). I've played him a few times now and I see the most benefit when paired with a "real" carry to amplify and support them while still being able to do considerable damage (a la Silencer). Definitely makes sieging bases a lot easier once the rest of the team understands you're going to give them 100% evasion and use items x2 to cc/kill anyone that tries to stop you.
So you end up with shittier Naga or Alchemist and if the Octarine build taught us anything, it's that gold is nowhere near as important as xp in the early game.Radiance plus manta plus ult seems like a ridiculous amount of farming potential.
Its likely better than both with the ability to send a full damage clone to push or farm dangerous areas. Maybe octarine/radiance isn't the build, but midas seems pretty good though given the 2.5x benefit.So you end up with shittier Naga or Alchemist and if the Octarine build taught us anything, it's that gold is nowhere near as important as xp in the early game.