So here's the breakdown, I have an 80% win rate with Malphite-TheTankThatDoesn'tDie and I want to share how OP he is, without building barely any damage!

I find that extra movement speed on all my Champs is a personal requirement. NEVER underestimate the power of the extra 5% cooldown. The rest straight tank is pretty straight forward.

Pretty straight forward, Scaling MR runes for the extra MR late game. Flat armor runes for early game JG Camps. And just scaling HP and flat HP is good as you don't buy too much HP in game.

E is a great source of damage for all monster camps as it scales off of armor. It also slows attack speed by a fair amount which leaves monsters harmless. Maxing E first provides massive damage while Maxing W second enhances the damage with the passive.

Pros:
-High armor and MR
-Very low cooldowns on abilities
-Ulti+E combo does massive amounts of damage and initiates amazingly

Cons:
-If ulti is missed, you may have no other way to initiate and can be kited quite easily
-If vsing a full AP team, you may find yourself in a bit of trouble as you scale off armor

Never underestimate yourself in team fights, with this build you reach around 375 armor, and 150 MR which is really incredible, also you are dealing incredible amounts of damage with your Ulti+E combo, this helps your team to easily win team fights especially with a YASUO on your team. Just relax and let the assists come to you ;)