Item concept - Void Orb
I think this would really be able to flesh out some builds in certain situations or in certain matchups. Some great examples would be if you need executioner's calling but don't need armor penetration, if you want the quicksilver sash cleanse but you aren't an ad champion, or simply for champions like Tryndamere who like to rush tiamat but may not find the upgrades to be worth it. The cost would be up for debate but I would suggest 1000 to be pretty fair.
Void Orb
Unique active- consume - Absorb any 2 advanced items gaining their unique passives, actives, and base stats.
Unique passive - This item has 50% increased base stats (except cooldown reduction). Only one can be purchased per game.
It is used by using the active of the item and then clicking on the item that you want to consume. Item actives are not added to it until 2 items have been consumed.
Here are some examples:

+45 magic resist +23 attack damage
UNIQUE – QUICKSILVER: Removes all crowd control debuffs from your champion (90 second cooldown).
UNIQUE – EXECUTIONER: Physical damage inflicts Grievous Wounds on enemy champions for 3 seconds.

+45 magic resist +30 armor +75% base mana regeneration +300 mana +10% cooldown reduction
UNIQUE – HARMONY: Gain +25% base health regeneration for every additional 25% base mana regeneration.

+600 health +90 ability power
UNIQUE – MADNESS: Damaging an enemy champion generates one stack every second for the next 4 seconds. Deal 2% increased damage for each stack, up to a maximum of 10%.
UNIQUE – TOUCH OF DEATH: +15 magic penetration.
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