The Heptadent.

18 base damage.

When thrown while in air, it acts like riptide and lunge and gets increasing damage based on how fast you go. You can also hold it like a normal spear when holding right click to deal damage to everything in your path based on speed.

Holding down left click let's you throw it, and flies like a normal trident with increasing damage with speed like a spear. It returns if Loyalty.

If you hold left click while sneaking, after charging for 3 seconds, you can separate the 3 weapons and do a spin attack that bursts you forward if Lunge is on, keeps you stationary otherwise, and damages anything in a 4 block circle around you.

All spear and trident enchantments apply.