I thought of something that might or might not work.
What if a warg is treated as an equipped item like a weapon, accessory, or armor? I do know that some RPGs make some equipped items unable to be normally removed like cursed weapons or armors. If so, maybe a character’s warg can give stat bonuses and penalties and be treated as a "cursed" item that cannot be removed.
This could add the flexibility to allow the player to change wargs if you want to add that ability to the player later in the game.
However, if you cannot add equipment slots or lock them like cursed items in your version of RPG Maker, I understand if this idea will not work for now. Maybe this idea could be used if you port the game to a later RPG Maker version.
EDIT: I found some ways to add equipment types to VX Ace so that wargs could be an equipment type.
- https://forums.rpgmakerweb.com/index.php?threads/question-about-equipment-types.168165/
- https://yanflychannel.wordpress.com/rmvxa/gameplay-scripts/ace-equip-engine
- https://himeworks.com/2013/07/custom-equip-types/
For RPG Maker MZ in case you want to port the game to Android via RPG Maker MZ, see https://steamcommunity.com/app/1096900/discussions/0/3047235828272462127/.