Here is a Juggernaut level rework for Ezreal that I've made
Passive: (Added) Upon reaching 5 passive stacks OR executing an enemy with Trueshot Barrage, Ezreal enters Museum Rage for 5 seconds, gaining 40-200 Attack Damage and applies max stacks of "Skill" to every damaged enemy.
Q: Ezreal can now use Mystic Shot three times in a row, dealing increased damage equal to 2-3x the precedent attack's damage (if 1st strike deals 100 damage, second deals 300 and third deals 900).
W: (Added) New Passive: Upon killing units, Ezreal permanently gains 0.25 Armor and Magic Resist, up to a maximum of 30 bonus resistances.
Active: Hitting allies with Essence Flux now gives them the bonus resistances too. Ezreal can Arcane Shift into it to gain twice the bonus (60 bonus resistances).
E: (Added) New Passive: Upon hitting an enemy with Arcane Shift, your next basic attack against it with stun the target for 1/1.25/1.5/1.75/2 seconds.
Cooldown reduced to 11 seconds at all ranks from 19/17/15/13/11 seconds.
Mana Cost reduced to 50 at all ranks from 90.
R: (Added) New Passive: Ezreal now marks the enemy with the most recent kills as the Map. Basic attacking or hitting your spells against the Map will deal additional damage equal to 1% of their maximum health as true damage. Addtionally, if Ezreal damages dragon and his team executes it within 20 seconds, Ezreal can summon the dragon, ride it, gaining 200 Movement Speed and deals now AoE physical damage equal to 130% of your AD.
Active: Now suppresses all enemies hit for 1.5 second.
Upon executing an enemy champion champion with Trueshot Barrage, it can be recast within 20 seconds for free, completely resetting and removing the mana cost at rank 3.
Now deals true damage to the Map.
:^)
