Olaf Suggestions
I'll try and make this short and sweet, because Riot keeps having issues finding a good place for our viking war god.
Passive : I'd like a 2% per 1% missing, but hey, who doesn't want buffs nowadays? It's pretty good where it's at.
Q : Axes are good. Like, REALLY good. Don't touch these. Ever again. Please. PLEASE. The only thing that would be amazing would be normalize the slow not based on distance, instead making it a static 2s slow.
W : Also in a really good place, I could only hope maybe a slight kick to normalize percentages. 15/18(17.5)/20/23(22.5)/25%
E : All he needs here is update him to your modern coding conventions that allows his completed castings to not be canceled by losing vision. He's one of the old champs who still has this issue, whereas new ones do not have this bug.
R : This is always the point of contention. Is it too good? Answer - NO. It's not too good. 6 Seconds of CC immunity is a solid number. The problem comes from two glaring issues tied to it.
A: THE PASSIVE -Grants tank stats. Healthy for a healthy Loaf. Keeps his HP up where it should be. B: THE ACTIVE -Loses tank stats. DOUBLES the loss as bonus Attack Damage. Good on paper, iffy in practice. Sometimes you're trying to just break out of CCs to escape, but now all of a sudden you're taking so much more damage because you just lost your big sources of defense (in the earlier stages of the game).
My suggestion for Ragnarok: Static. Percentage. Stat gains. 10/15/20% bonuses from items at ranks 1/2/3. Think of it like this.
Say you've got 3500 HP, and 200/100 Armor/MR, with total AD of 250.
3500-2178 = 1322 HP item bonus. Gives you 265 HP from ultimate. 200-77 = 123 Armor item bonus. Gives you 25 armor from ultimate. 100-53 = 47 MR item bonus. Gives you 9-10 MR (depending on literally .2 of a point of MR) from ultimate. 250-120 = 130 AD item bonus. Gives you 26 AD from ultimate.
Now, I won't go through the rest of his stats on paper like AS or Lifesteal etc but here we have the following final bonuses.
3765 HP 225 Armor 110 MR 275 AD
What does this translate to? Actually, it reduces the active bonus by a significant amount, and also leaves him with far lower overall tank stats. What does it mean in game terms? Olaf gains a critical stat he needs so desperately. Health. Olaf's HP pool is so critical to him being able to survive fights and dive into backlines to disrupt the enemy team, and he needs a huge pool to do it. Especially with how much damage is being thrown around these days.
Your average Olaf will almost always get a Randiun's Omen. This gives him a bonus of 100 HP and 12 armor. This ultimate doesn't give him free stats, it improves his gold and item efficiency. I'm not a fan of free stat abilities, and things like Shyvana's passive really rubs me the wrong way. Especially with her having TWO passives. THREE once she ranks up her ultimate. Static abilities with no conditional modifiers are boring and sometimes give too much or too little for what they do.
In another vein here's a DPS Olaf that just goes full ham: 385 AD (IE, BT, Ravenous Hydra, Triforce, BotRK) from items and (120)base damage. 53 bonus AD bringing him up to 438 total AD! But, the only catch is now you're running around with around 2500 HP. With 77 armor and 53 MR. Woo, squishy town.
