like i play spirit as my main but is she bad
She's still good. Facing top, top, tier players is a little bit of a challenge. But the majority of players get mind gamed so bad that a 4k is inevitable.
Spirit is still very good, but takes a lot of skill.
The balance changes didn't really change that much to make her "bad", if anything she's still a top tier threat at Red Ranks, she just doesn't have add-ons like Prayer Beads (Which was 100% within reason to nerf) and other such add-ons were changed as well to follow a more fair approach to playing against her.
Also her collision was removed in her phasing, which gave her a solid counter to use against her, unlike before where if the Spirit was very skilled in their main, than they would for sure down you in most cases.
So in a sense, when you get over those add-on changes and slight tweaks to her power, than she's still in a sense a top tier Killer, she's just more fair and fun to play against now. Of course some would argue that they did enjoy facing her for the challenge, but i'm speaking for the general audience that faced her that didn't.