How would the community feel about an item similar to Aghanim's Scepter in League of Legends?

For those of you who don't know, Aghanim's Scepter is an item in Dota 2 that lets a hero update one of their abilities.

For example, there's a champion in Dota 2 named Lich who has an ult which is essentially the same thing as Brand's ultimate. Once Lich purchases Aghanim's Scepter, his ultimate gets UNLIMITED bounces until people move out of range. Now obviously this seems pretty busted in League, so it would probably have to be toned down a bit or rebalanced in a way.

Another example is Zeus who unlocks an entirely new ability which (I think, I haven't played Zeus before) is like a global cast Viktor ult which cannot be moved.

Now, I see a few upsides and a few downsides obviously. (But I'm no expert like all of us Silver III analysts.)

PROS

• It would likely be a really fun item to get on certain champions by implementing unique interations that might bring life into some champions which usually have either mundane kits or underwhelming kits for the situation.
• Adding variety into the game.
• We could have another triforce-like item which has stats on everything making it an all-around okay item to get.
• Probably some more that I can't think of.

CONS

• Balancing issues would likely arise due to the single introduction of this item.
• Every new and old champion would have to have a new interraction with this single item.
• Lots of us are really tired in seeing change in the game and this would likely cause a lot of change.
• Probably some more that I also can't think of.

Now for some theorycrafting on what Aghanim's could do in League of Legends, some serious and some fun ideas.

• Kled can recast his ultimate once during the charge.
• Xerath gets 50% damage reduction while casting his ultimate.
• Jinx's fishbones no longer cost mana.
• Rammus's taunt is AOE and taunts nearby enemies of the first one for 1/3 duration.
• Taliyah can fire 2 rocks off of her worked ground.
• Draven can carry a third axe (buff stacks up to three). ( ͡° ͜ʖ ͡°)
• Teemo can store up to 4 or 5 mushrooms at once.
• Karma ult gets two charges.
• Shaco ult gets another clone for a total of 3 Shacos.
• Karthus ult hits twice, a second time for 1/3 damage.
• Gragas barrels take only half the time to become red.
• Nami's Ebb and Flow can bounce up to once per target as long as people are in range.
• Zyra's plants gain bonus range and health.
• Blitzcrank's ultimate no longer does damage but instead silences for 2.5 seconds.
• Skarner becomes even stronger on his pillars and still recieves some bonuses on enemy pillars.
• Garen can now charge up his spin by holding E - whereby releasing it, it will do the same amount of damage in half of the time.
• Azir W can now reach a total of 60% cooldown reduction.
• Dr. Mundo gains a new ability which lets him stun an enemy champion for 2 seconds, but he is also stunned during those 2 seconds.
• Mordekaiser gets all of his bugs fixed.

Thanks for reading, let me know what you think and what some other cool interractions could be. [katarina-love]