Tool trims

I was adding armor trims to my armor when I realized that there were no tool trims. Tool trims could instead of adding detail to your tools, it could reshape them and add stuff like more attack damage or more durability, and stuff like that.

Ideas:

Seek trim: allowing your sword to hit multiple mobs at once.

Flame trim: adding rigged edges to your sword and doing +15 damage to your sword.

Grinder trim: when a mob/player is hit with this sword it will de-enchant the item in your opponent's hand.

Multi trim: Making your pickaxe mine twenty seven blocks instead of one.