Description

Adds 9 "unique" magic abilities that can be applied to swords (and golden axes) using CustomModelData or acquired through a special NPC.

CMD for specific magics is 917+[Number of magic - 1]

Features

Arcane Trader

Every 10 minutes, an Arcane Trader spawns at a random position on the surface near spawn in the overworld. This trader sells a random sword (or a golden axe) imbued with a random magic.
Once an Arcane Trader spawns, a message is broadcast in chat.

Weapons cost 10 emeralds and a set price in diamonds (see table below)

Weapon	Diamonds
Wooden Sword	15
Golden Sword	25
Iron Sword	30
Diamond Sword	50
Netherite Sword	64

Dual Wielding

Holding a valid item (sword, golden axe, trident) in your main hand also applies the magic of the weapon in your offhand

Magic

1. Flame

Demonstration of Flame (A donkey getting set on fire with an iron sword)

Sets the entity hit on fire for 50 ticks (2.5 seconds) (disregarding block) and deals 1.3x damage (unless the attacker is frozen).
If not blocked, gives slowness for 60 ticks (3 seconds).
Disables lightning completely whilst they're on fire.

2. Frost

Demonstration of Frost (A donkey getting hit with an iron sword)

Gives the entity hit 80 freeze ticks (4 seconds) and deals 1.15x damage.
This magic makes some magics not deal extra damage/disables their effects.

3. Teleport

Demonstration of Teleport (A donkey getting hit with an iron sword, it progressively teleports higher and higher every hit)

Teleports the entity up 0.5 blocks. The more the sword wielder hits entities with sword, the higher it is teleported. 
This scales up to 5 hits, and then is reset.

4. Lightning

Demonstration of Lightning (A donkey gets hit by an iron swords, and then smited

Smites the entity, dealing 1.5x damage.
Only deals 1.2x damage if the attacker has freeze or fire ticks.

5. Blood

Demonstration of Blood (A donkey is hit with a blood sword, and the attacker gains health)

Heals the attacker a portion of the damage dealt to the entity.
Deals 1.15x less damage if the attacker has freeze ticks.
damage_healed = damage/2.5

6. Poison

Demonstration of Poison (A donkey is hit by an iron sword and gains the poison efect)

Gives the entity hit poison for 20 ticks (1 second), even if the attack was blocked.
If the attacker has the poison effect, the poison given has an amplitude of 5 instead of 2.
If the entity hit has the poison effect, they get nausea for 40 ticks (2 seconds)
The attack deals 1.15x less damage.

7. Shadow

Demonstration of Shadow (A donkey getting hit, and then teleported two times)

Teleports the entity hit a random location within 7 blocks of the attacker and gives it blindness for 60 ticks (3 seconds).
It also makes the attacker glow for 15 ticks (0.75 seconds)
If the attack was blocked, this only gives blindness.
The attack deals 1.15x less damage.

8. Earth

Demonstration of Earth (A donkey in a group of donkeys is attacked, and nearby donkeys are launched away from the attacker)

Launches entities within 3 blocks away from the attacker.
If the attack was blocked, entities are launched less.
The attack deals 1.15x less damage.

9. Wind

Demonstration of Wind (A donkey in a group of donkeys is attacked, and all donkeys are launched towards the attacker)

Launches entities within 5 blocks towards the attacker.
If the attack was blocked, entities are launched less.
This can launch entities over the attacker.
The attack deals 1.15x less damage.

Icon from game-icons.net licensed under CC-BY 3.0

Arcane