This is a very small "simple" kitpvp map, not the best aesthetics but it does work...
Please play in adventure mode
Also make sure to enable command blocks


Kits:

One shot - Sharpness 20 Diamond Sword (3 durability)

Duelist - Iron Armor & Stone Sword

Axe - Iron axe, helmet and boots

Tridents - Tridents, Turtle Shell & Leather Armor (don't ask why the leather armor has sharp 5)

Support - Bow, Healing arrows, 10 poison arrows

Diamond Sword - Sharpness 3 Diamond Sword, Leather Armor

Bow - Bow and a shield (also 32 arrows and 16 spectral arrows)

Crossbows - 3 Crossbows and a shield (some amount of arrows too)

Potion Master - Custom Potion: Regen 2 (30s), Strength 2 (30s), Invisibility (50s), Glowing (5s)

Wizard - Knockback 2 stick, 48 (lightning) snowballs, 4 Instant Health potions