Oak Invincibility
Something I've realized (we all know oak is already strong) is that when oak uses his shield. That target no longer gets HIT. It may say absorb or something but when using the heart of life it doesnt' interrupt it. I just had a game where i played against an oak who did this and with 6 seconds of shield some killer armor and me as torchbearer (low health) he was pretty much invincible. Either he could continue fighting even at 500 hp becuase shield then heart of life or he could run away in some of the most annoying circumstances. Through the entire game he died once. Killed over 5 people. (I got disconnected)
In my opinion here are the problems:
1) I doubt this was meant to happen.
2) How do you kill someone who does this.
3) Regardless of what you do it's impossible to prevent since shield is a nigh instant spell.
4) Way too easy to get at 4k to set up.
Problems I had while fighting him:
1) As torchbearer all my damage was burst or close to it with AoE. Yet he leveled faster because he never had to run.
2) As torchbearer my damage was all burst and when i came at him i easily took out 3/4 of his health with my spells yet he always regened back. And with cooldowns I had 10 seconds before I could damage him again but as oak he just kept pouring the steam on
3) It happens WAY TOO EARLY all he needed was 4k and starting with 1k it isn't that hard. Almost instant invincibility. And didn't help one of my allies fed him a kill. He got on a few assists too and it wasn't too hard to get that money.
4) 2 People couldn't even take him down he had wand of speed and boots of speed and ran behind towers.
5) Later in the game when the money started getting high all he needed was armor and he had a ton of it. SO that 2000 hp he gets over 6 seconds turns into 6000 effective. It just became way too hard to stop him.
5) Our towers couldn't stop him at all he just ran by then and killed us because at 800 health he still could survive the towers.
Now I know i'll get criticism saying "He sacrifices damage" or "He's more vulnerable early game" But the truth of the matter is all it took was 3 skill points so even if you followed the regular build it wouldn't be that hard to do this. And selling items you'd only need 5k worth of them so you wouldn't suffer anyway. Other criticism saying "have you tested this?" Well i haven't but it's a viable strategy that caused me to lose a game quite spectacularly. And one more thing "big deal he can only use it ever 45 seconds" yes but when you have a 35 second death counter he's only got 10 seconds outside of that. And even if you manage to kill him afterward he still comes back with his last stand and if you aren't already dead you will be then. Plus with 15% cooldown flag and 10% cooldown favor item that 45 goes down to around 33 and thats a lot stronger than before.