Hey, avid MTG Player here, some feedback on your rules text.

The first ability: "Put a 3/3 black, green, and white Cat Beast enchantment creature token with deathtouch and lifelink onto the battlefield". Just semantics really but more inline with planeswalker token generation like arlinn kord, etc. This i would drop to a 2/2 or make it a +1, this is a really powerful creature being generated, and i would maybe flip it with the minus.

The Second ability: "Sacrifice up to one enchantment, for each enchantment sacrificed this way, destroy another target creature or planeswalker". This wording prevents redirection effects from him being able to destroy himself and still gives you the option to sacrifice none if using the plus ability is detrimental to your board state.

The third ability is great in the wording. With it being a minus 4, i would have it be "Each opponent" or "...and you gain that much life". or take it down to a minus 3.

The final ability: "For each enchantment card you control and in your graveyard, you may create a token that is a copy of that enchantment ." So this is just more semantics but the important bit is you have to designate them as "cards" in graveyards otherwise its technically not a "enchantment" in your graveyard, its an "enchantment card", additionally this rewording gives the option to not create copies of potentially game ending enchantments in your graveyard, where two enchantments create a infinite loop and force a draw or something of the like or, if you have maybe a oblivion ring or something and your opponent had no permanents, you dont have to exile your own stuff, as its an ult, i feel you should have some pretty good control of what your duplicating.

Hope you found this helpful.

I might make the first ability +1. I wouldn't change it with the minus ability, that would be pretty broken I think. Depending on the state of the game the minus ability could basically kill a player. In my Adastra set there are a lot of enchantment token generators what would probably stack up quickly. Also outside of my custom set, if you run this with something like Enchanted Evening it can be pretty broken too, at least for a plus ability I think. That's why I also didn't gave it an upside, but taking it down to -3 might be somehting. Although with the first ability being +2 the cost of -4 might not be that much of a downside. Instead of reducing the cost of the first ability, I am thinking about splashing it with downside like 'you lose 3 life'. It wouldn't be much of a set back since the token got lifelink, but it might stop abusing the ability too much.

The wording of the second ability I took from the recent Vraska, which in it's concept, even if you don't destroy something, is kinda similar.

For the last one you're right and I will adjust the wording for that. The ults sometimes suffer from me thinking too long about all the abilities and just wanting to finish it at a point so I check the wording less carefully, so thank you a lot for pointing that out.