Akali’s healing
Akali has extremely high healing, and was given added synergy with Gunblade despite the fact spellvamp was removed for less-mobile, higher cooldown, mana champions.
That alone is fine. But healing is supposed to be balanced by a LACK of escape, with the intention that you are staying and healing instead of leaving. But the added blink on top of her cloak gives her defense against ganks that make her single-item ability to 2v1 too easy to reach with very little risk at early levels. And even her ultimate can be used to escape, with much higher range, since it's almost guaranteed there will be enemy minions behind her when she dives in.
Nevermind the fact that a cloak with a blink is inherently unbalanced (similar to %HP true damage in that the combined aspects completely delete the strongest possible counterplay).
as a counter to healing. Only because you have to get them below 35% health for it to kick in and a good Akali will never let you get near her with that little health.