A new pvp based weapon. Based on the title, yes, it is a long and 3 pronged fork. Let me explain what this does.
As you can see by the name, it can grapple onto things like the Hookshot except when you do grapple onto things you can use it as a swing. It doesn't reel in like the Hookshot unless you press B or Y which then it will slowly reel in. This of course works on players as well and if a player does get caught with a grapple trident, their mobility will decrease and any projectile weapons they have (Revolver, shotgun, anything) will be disabled and they will be pulled towards the player with the grapple trident. This does has one downside though. The person who is grappled can cut the grapple trident with a melee weapon causing the person with the trident to lose the ability to shoot their trident for 6 seconds. It does take a bit of hits to cut the line and sharper weapons cut it faster.
And yeah that's pretty much what this is. Give me yer thoughts.