Unstoppable speedy ganks and snowball potential.
Burst damage and target access
Add an active effect to your boots that grants a large boost of MS and causes your next attack or spell to deal bonus adaptive damage.
Deals bonus true damage to enemies with impaired movement or actions.
Takedowns on enemy wards cause friendly Zombie Wards to sprout from their corpses. In addition, damaging a champion after destroying a ward inflicts bonus magic damage.
Unique takedowns grant permanent Active Item CDR (includes Trinkets).
9% attack speed, 9 ability power or 5 attack damage
Takedowns restore health and grant bonus gold.
Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.
Predator on Olaf allows you to hit the go button on ganks and not let up. With the CC immunity from [R] you'll be hunting down anyone who gets in your way.
Cheap Shot allows your to repeatedly deal True Damage to whatever target your attacking thanks to the perma-slow from [Q] and Righteous Glory.
Zombie Ward on jungler provides massive amount of vision thank to your natural deep warding to keep track of the enemy jungler, as well as clearing of enemy wards with Sweeper/Control Wards.
The item CDR from Ingenious Hunter allows you way more uses of Predator and Righteous Glory for those unstoppable ganks.
Triumph on Olaf allows you to dive into the back line, absorb the brunt of the damage for your team, and heal for a ton from any kills or assists to keep fighting.
Coup De Grace is the go-to tune for reliable damage in fights where you're able to get to the back-line and shred the enemy squishy champions.