What do you think of this Olaf build?
You don't build in this particular order. The items are My masteries are 19/0/11 (for lifesteal/potion sustain) and A.Speed marks + Scaling Yellows + Scaling Blues + 1 A.Speed Quint + 2 Lifesteal Quints.
Bloodthirster BoTRK Ravenous Hydra Boots of Swiftness + Alaricity enchantment Deadman's Plate Spirit Visage
You have, at level 18, ~170 Armor, ~140 MR, ~3k HP, ~330 AD, 54% Lifesteal and ~1.5 A.Speed, without your W up, along with loads of movespeed to catch people. (The armor and MR are when your ults passive is up, otherwise it's 30 less on both)
My favorite thing about this build is that if you're losing a fight, you run to the nearest enemy minion wave (cleave applies lifesteal!) and heal ~500 HP per hit.