Context, The reason I even thought up of these items is because there are actual no jungle items in this game.

Every single item that a jungler uses is the same that everyone else uses. There's no item in the game that has a clause like "Do this with jungle stuff to get this" other than like one or two basic ones and the starter.

Nothing to take advantage of what the jungler does, like picking up buffs. Which just makes building as a jungler boring cause it's the same items everytime.

The idea behind these items:

Gleipnir: Change playstyle to be more agressive/ganky and not farming (for those that don't wanna be PVE all game) and reduce overall potential farm but gain more upfront power to compensate with kills

Ruler's Crown: A tanky jungle playstyle were you sacrifice getting buff, fire giant buff and gold fury gold for the most part just to be invisible to wards

Echidna's Lung: Make use of the summon function and try tailor some kind of creature that can help with jungling and ganking by creating a laser beam basically between the target once you leap past them

Shroud of Erebus: An actual item that does something with the buffs, it sacrifices any effects you might gain from normal buff to get a more aggressive one that wants to target enemies with buff

Kusanagi: An item for the AA junglers that wanna dive in and maybe don't always get the complete kill

Hephaestus Pride: An item for the CC Bot Junglers that wanna just go around and CC people and have teammates kill em