Idea for Magenta Llama:
Healing Cloak: Constantly Make a Healing Aura that Heals Listed Creatures:
Mobs in the Same Team as Itself or it’s Owner, Passive Mobs, Owner, Llamas, Neutral Animals Not Targeting Itself or Owner, Trader Llamas
Enchanting Carpet: Enchants Nearby Friendly Player’s Unenchanted Items(Icluding Making Books into Enchanted Books), Disenchants Nearby Hostile Players, Mobs, Neutral Mobs Targeting Owner of Itself’s Item’s Enchants
Spell Cloak: Players Riding It While Holding a Book and Quill will make it into a Random Listed Spell Book, Need 300 second Cooldown(5 minutes) to Make Another Spell Book(Multiple Llamas Won’t Share the same Cooldown, So You can Transport the Spell Cloak into Multiple Llamas to Farm Spell Books)
Heal Book(Heal for 4 and get Saturation, 30 sec Cooldown)
Summon Book(Summon 3 Friendly Llamas that Fight For You, 5 min Cooldown)
Spit Book(Shoot a Llama Spit that Inflicts Poison, Weakness and Slowness, No Cooldown)
Llama Storage Book(Open any Llama’s Gui from any Distance, No Cooldown)
Cloak Book(Applies Invisibility for 30 sec, 1.5 min Cooldown)
Super Llama Spell Book(Combine all 5 Spell Books into one, Having all 5 Spells and 50% Cooldown Time for All Spells)

Magenta carpet could be either a Regeneration Llama, who gives regen to all nearby mobs, OR a Dragon Breath spitting llama just like the fireball one but with dragon breath XD

Just asking, for the case of the spitting fire llama, I always have had the idea of llamas attacking hostile mobs when they attack the player and the llama defending, but does this datapack update the llamas to do this?

I have a suggestion for magenta: Enchanting Lamma. Makes any enchanting table near it act as if it has full bookcases and makes anvil prices go down. Made with two books in the top corners, an enchanted book in the middle top area, two bottles of enchanting in the middle side slots, the carpet in the center, two enchanting tables to the sides of the bottom, and one anvil at the bottom middle.

btw pls reply quickly