Another Solution to tank meta: Buff Zeke's Herald

If enemy is stacking thornmail solution buy 1 zeke herald on your team. Kind of like how aegis and abysal cancel each other out same could be for thornmail zeke's. Zeke's passive is strong but the item iself is meh for the person using it. I propose removing the extra damage on its aura and redirect/focus the stats toward making the item more attractive for the character using it.

Stats +300 health +20% cooldown reduction +25 ad +5% life steal Aura UNIQUE: Nearby allied champions gain +20 attack damage and +10% life steal. (1100 Range)

Since bruiser/fighters champions cant offer their adc as much peel as well as tanks, at least they could get's zeke as a form of assistance. Also as a top laner getting zeke you comprimise your lane dominance top lane considerably. This buff would keep your threat level high enough that the enemy might think twice before rivaling you.

supports have enough support items to choose from already and even if they were to get zeke it would be late into the game and preferable after they got ice born gauntlet. Most other support items synergize with support genre more. Even for the support champion that might run iceborngauntlet into zeke the recommended changes wouldn't compromise it.

or What if you zeke did not have an aura but instead was like nunu's blood boil. instead of being an aura you apply it to an ally. you could have 2 charges kind of like smite and use it on up to two champions. 1 charge every 30 seconds. lasts 6 seconds.