Who did you use and what tips can you give?
Here's my build
If you can find the same equipement but with another negative effect, it will be better, the worse edge grabbing made me lose a few times. Speed is not that useful, you need to be careful not fast (and I didn't feel a huge difference in his jumping abilities).
I used Shulk, a character that interested me but didn't play often. However, there is a special raison I used him : monado arts. With my customized character I could take down the master beast with 3 smash in buster mode. Also his smash art his great for early kill. Shield art is pretty great too, especially against the master swords. I didn't use speed and jump art too much (and you should use jump art, the recovery iis way better, but again, I didn't use shulk too much). Counter is useless IMO, mindgaming a level 9 cpu is like mindgame someone who can read in your mind. Backslash can be useful but there are better options.
Besides his monado arts, his Fair and Nair are so awesome that even level 9 cpu can't shield them properly, and with a proper combination of shorthop aerial, grab and buster skill, I often dealed up to 100% in a few seconds. Utilt is also very good to deal damage, the range is insane ! For KO move, all the smash are good but the down smash is really the best, again, the range is ridiculously good.
If you don't want to use Shulk I have a few general tips :
- Avoid at all costs 4, 6 or 8 players fights (often unavoidable on the stage 3 and 5). It's a mess but the AI is also good than in a 1v1. And STRANGELY they target you (you will get sometimes 50% damage without even noticing). More than that, when I was on the respawn plateform and waiting the AI to fight against himself, they looked like less aggressive. Probably my imagination.
- Counter character are the most dangerous opponents (if you don't use shulk, avoid to pick a counter character, master copy is vicious). They can pull of a counter at the very last moment even in a 8 players mess, using ranged attacks or items are the best options against them.
- We all know team battle sucks but it can suck less if you choose the right partner (a heavyweight / powerful character), they are so dumb they hit like two times a minute, but they still hit harder. Besides you can use them as a human shield will you collect items or charging a smash attacks.
- It's probably obvious but USE ALL THE ITEMS, don't even think, use them, even if you don't want to use them, take them, throw them so the AI don't have to use them !!!! If this is a hammer be careful, sometimes it's better to let the AI get them, especially if you have counter ( ͡° ͜ʖ ͡°) .
- The fight against the Mii is probably one of the hardest one if not the hardest. They are five, they are harder to lauch than you think and they build up damage quickly. Spamming smash is not the best solution sometimes since the AI with them is pretty strange. I recommand to camp close to the ledge so they can attack you only from above or one side. They can't use items so you can wait the right moment to get them. Even if it's difficult to get smash by them, once you are above 100%. The fight becomes way more difficult since you are ejected again and again. You can also use the same strategy from cruel mode (camping on the edge). But this is really risky and you can't restart like in cruel mode.
- Again pretty obvious but you should know perfectly the patterns of all the Master Core form, some of them are incredibly easy once you know of they act. Master forteress is probably the easiest one, the difficulty with "him" is that you know nothing
Jon Snow. Actually I faced master forteress only one time for this challenge. The harder part is probably the master swords which have wide and fast attacks while difficult to reach, if you beat him you have done the hardest part (,ust make sure you don't have 200%).
I think that's all, if you want more details just tell me, I'm still not totally familiar with english so some things can be tricky to understand. Anyway, I hope it helps.