Any advice to beat Mitsu? He is giving me huge problems
Thankfully, genver put me through a clinic with his mitsu.
1. 3B BE -- respect it or try to jG it. If you want to respect it, watch his meter and if he has 1 full bar,
always step to his right after blocking the first hit. If he has half a bar (enough for 1 BE), try to 6B8 him out of it -- worth it to make him waste the bar so he doesn't have access to this mixup for a good part of the match. I am currently trying to figure out if there's an option select jG in there somewhere -- I'll let you know if I find one.
2. 2KB -- never, ever try to duck this unless you're 90% sure he'll use it, or you're down to the last hit. Not worth it to eat 66BB over a guess.
3. 4B -- Unfortunately, aside from 6(B), Ivy doesn't have a good way to safely cancel this option of his after he's at slight disadvantage. Even 214B gets beaten out by this move. Use your own 4B if you want to poke. This recovers fast enough that you can block Mitsu 4B even if your 4B whiffs. Other than that, if you're reading a 4B, step forward is your least risky option.
4. His pokes (B6 and B2 I think? forgot the command) -- Low poke is negative on hit. 7B out of that mixup once you get hit by B2. Again, not worth ducking just to block the low here.
5. Ouki -- you have to respect that he has good ouki and not WR attack. Mitsu can and will punish you heavily for this, as any WR attack off down is about 10 frames slower. Rolling might be an option from time to time (roll to his right), but otherwise, just stand up, block, and guess.
Your good spacing moves against him are 66B, 6B and 44A. Just keep hovering outside the range of his sword and punish with 6B8 as appropriate.
Good luck -- its a tough matchup. :)