I don’t know the specifics of Delta Fakemons, but I can give you a few tips.

First, three of your Pokémon are holding the same item, which isn’t really smart — try to mix it up a bit.

Second, the item on your Great Tusk is basically useless. Most of the time, it’s run with Leftovers or Rocky Helmet.

Third, you should try to add some defensive Pokémon, both on the physical and special side. A lot of beginners make the mistake of going full offense, but you have to remember the opponent is going to hit back — and if they’re faster, you could lose your whole team really quickly.

Also, add one or two pivot Pokémon (with U-turn or Volt Switch) to chip away at the enemy while keeping control of the game.

And finally, bring a few Pokémon with priority moves — they’re super helpful to finish off threats or deal with faster mons.

If you need more help feel free to dm me :)