League of Legends - Tipps/Erfahrungen/Tricks

Bonetooth Necklace
Reworked: now builds from Hunter's Machete and Long Sword
Now provides 10 attack damage and 1 additional attack damage per level
New passive: 20% Increased damage to monsters
3 Stacks: Rengar gains movement speed while out of combat, or while in brush
6 Stacks: Leap range increased
9 Stacks: Thrill of the Hunt has increased duration
14 Stacks: Rengar gains movement speed for 2.5 seconds upon exiting brush
General
Base health regeneration, health regeneration per level, and health per level all increased
Unseen Predator
Now becomes visible at the beginning of the leap, rather than midleap
Savagery
Attack speed increased
Base damage decreased
Empowered Savagery
In addition to dealing bonus damage, grants Rengar 3 Ferocity.
Battle Roar
Damage increased
Cooldown decreased
No longer grants armor/magic resistance
Enemies hit with Battle Roar have their attack damage reduced
Empowered Battle Roar
Now deals damage based on Rengar's level
Bola Strike
Damage increased
Bonus AD ratio increased
Range increased
Is now a skillshot
Empowered Bola Strike
Now deals damage based on Rengar's level
Root duration increased
Thrill of the Hunt
Duration greatly increased, scales with ult rank
Cooldown decreased
Movement speed bonus increased
No longer stealths Rengar for the duration
Consumes current Ferocity on cast - each point of Ferocity consumed increases the duration of Thrill of the Hunt by 1 second.
Rengar's first basic attack while in Thrill of the Hunt will cause him to leap at his target - Rengar retains the movement speed increase from Thrill of the Hunt for 3 seconds after leaping.

General
Base Mana reduced by a small amount
Mana per level reduced by a moderate amount
Undertow
Slow no longer decays.
Minimum distance added.
Axes now stick in walls and structures only if they would land in impassible terrain
Axes now make jungle monsters ignore unit collision to enable Olaf's Axe pickup play in the jungle better
Vicious Strikes
Mana cost changed to a lower flat amount per level
Now provides a small % of extra healing for every % of health Olaf is missing
Health ratio removed from AD component
Base Damage increased significantly
Lifesteal minorly reduced
Spellvamp removed
Reckless Swing
Cooldown increased moderately
Damage reduced moderately at later levels
Cost reduced by a small amount at later levels
Basic attacks lower the cooldown of Reckless Swing by a small amount
Ragnarok
Mana cost removed.
Now provides a moderate amount of Armor / Magic Resistance passively
Active Reworked: Now removes the passive portion of the ability while active, grants a moderate amount of AD, and causes Olaf's basic attacks to splash to nearby enemies for a lower % of damage
Retains his immunity to disables