Nah. Forsburn needs two main things to be viable.
- Jab combo is not escapable at any percent.
- Forward Strong is not escapable at high percents.
I believe a grounded opponent can tech both jab and forward strong at any percent, basically leaving him with no reliable kill options (well, except fully charged down B) in a game where most people can just spam forward or down strong as much as they want. I've certainly had people escape both at 140%+, and that's even with forward strong being partially charged.
Beyond this, I honestly feel like parry needs 1-2 more active frames. As it stands, it's simply too inconsistent to be used like a shield. There's all kinds of times where I know exactly what the opponent is going to do and I press the parry, but I'm like 1 frame too early (it's a 1/6th second window), causing me to get hit, which in turn skews the risk / reward of throwing out mindless attacks. I think a lot of the game was balanced back when parry had much better frame data, and it kinda shows.
Oh, and please fix the Forsburn teleport input. There is absolutely no reason to have it read the direction on the frame he reappears. I have killed myself so many damn times with this move because I expect the direction to be selected the moment he vanishes (as is the case with every Smash game that has a move that works like this). It's especially bad when you get a minor lag spike during the teleport.