Here's an idea that might work to fix it:
+700 Health
+30 Attack Damage Removed
+30% Base AD
Passive removed
Unique Active (Melee-Only) - Avalanche:
Strike the ground, creating an avalanche in the target direction that snares enemy units for 0.5 seconds. For the next 6 seconds, basic attacks slow the target's Movement Speed by 50% for 1.5 seconds. Cooldown: 60 seconds
That active could be quite strong, as a gap-closer + sticking tool for melee champions.
+
+
could no longer benefit from it as a kiting tool.
would still be able to use it fairly well, but he could only use the active while in Mega Gnar form, so he couldn't use it to help kite while in ranged form. If a champion like
,
,
switches to ranged form, they would lose the on-hit slow application because it would be coded as a melee-only passive buff. Also, if
or
start to build it, they can simply have their Base AD nerfed and can have their bonus AD scalings buffed to compensate if needed.