Perhaps the left-click of the spear could be changed to a charged throw.

Although this design heavily overlaps with the trident, the trident does not have many opportunities for use in the early game, and in the late game there are ranged weapons like bows that deal higher damage. Moreover, most players choose to enchant the trident with Riptide to turn it into a travel tool similar to the elytra.
So we could design the spear to be throwable, and the longer you charge it, the more damage it deals, similar to the character Doomfist in Overwatch. In addition, if after throwing the spear there is a wall behind the monster, the monster could be pinned to the wall and unable to move. This could apply to creepers, zombies, skeletons, etc. If it hits a player, the player would be stunned for a period of time.
(This paragraph was translated from Chinese to English by me using AI, so it might not be very fluent. Sorry.)