A super sustain Ezreal able to 1v5 all match-ups. Unkillable mid and late game. Surprisingly tanky and able to play as a bruiser when ahead. Unplayable for enemy bot once you get a couple items even if you engage on them 1v2.

You are able to play large portions of the game without the support by your side due to your ability to heal yourself and give yourself buffs through Riftmaker and Spirit visage. This gives your support freedom to impact the game at different parts of the map.

With Ezreal´s E you are able to kite out most champions giving you the opportunity to waste opponents time with long drawn out chases that should end in you pking them down, turning the chase around. How the turntables ;)
Splitting with "No supp needed Ezreal" is vital. You give your team chance to make plays around the map, take towers and objectives. Letting your support join them creates a dilemma for the opponents. Should they send 3 to try and kill you. Which they most likely won´t. Also ensuring your team´s easy win in their respective situation.

Teamfighting is where Ezreal really shines and this guide does not take anything away from that, on the contruary. Long extended teamfights is where this build reaches it´s potential. You are able to poke down their entire team and outsustain any champ. You are able to dodge cc and carry any fight if your team has a frontline. But even if you get caught out with a hook or your frontline missplays you have high survivability.