The Akali and Katarina problem.
Hextech Gunblade is too strong of an item that is only picked up by Katarina and Akali. Every now and then you will see a champion pick it up that normally doesn't. Ryze, Ekko, LB.
But for the majority part, Katarina and Akali are over the top with Hextech gunblade.
All that needs to happen to Hextech gunblade is lowered damage. 175 to 253 + 30% ap.
realistic terms is 193 + 30% from when you complete the item at level 5 with 15% spell vamp and a 40% slow.
193 + 28 = 211
Both champions are able to abuse it too well.
To give some insight as to how over tuned Hextech Gunblade is. Lich bane on a level 5 Ekko does 50.2 (for the .75 x base AD) + 50% AP for Double Adaptive Shards and Corrupting Potion start. Total Damage comes out to 104.2 damage.
The difference between a lich bane vs a gunblade after accounting for shards is.
211 damage + 31.65 healing vs 104.2 damage. Total value is 138.45 difference at level 5 between a Gunblade and a Lich Bane.
That is only talking about healing from the gunblade by itself.
To give other insight on gunblade.
**Gunblade has a 40 second cooldown. Twin shadows has a 90 second cooldown. **
Twin Shadow which offers very little in the immediate early game (its pretty strong in the mid to late game) has a longer cooldown than Gunblade. Gunblade is on the same level cooldown as Banshee's and New Edge of Night.
Gunblade is extremely overtuned and a major reason as to why Akali and Katarina are strong.
The solution to Akali/Kata is a very simple one, many different ways to go about this as well.
1: Cooldown increased to 120 (same as Zhonya's) and Damage lowered from 175-253 to 125-225 2: Damage Lowered from 175-253 to 100-200 and healing lowered from 15% to 10%. 3: Cooldown increased to 100 and healing lowered from 15% to 8%.
These changes would affect the come to lane take fight and roam patterns. They aren't able to come into lane, W once gunblade with a Q + Passive for Electrocute. Effectively removing any capability of fighting back.
The cooldown changes make it so that they can't gunblade you every wave and a half.
The healing changes make it so that they aren't allowed to take bad trades and simply heal it off.
The damage changes the one shot potential at level 6.