Title: [Olaf in TFT] - Ultimate not working properly+inability to gain mana
Sometimes (seemingly at random), Olaf will not gain mana when fighting, whether by basic attacking or by taking damage (this lasts for the whole fight).
In addition, Olaf's ultimate still sometimes does not prevent stuns (at least glacial stuns)
Found this issue while playing TFT in a ranked game, with berserker buff, with olaf at levels 1 and 2 and with a warmog's armor as well as mountain hex buffs. I noticed the bug where olaf doesn't block stuns against glacial teams. Should be able to be tested rather easily by going into a tft game and playing olaf.