Unbeatable Unit/Item combo
Olaf with a bloodthirster and a rageblade cannot be beat. Getting that combination is an instantaneous first place finish. This unit and items can solo an entire level 9 team all 3 star team. He simply cannot retain damage once rageblade stacks and with his ult preventing CC the normal way to shut down a bloodthirster build fails on him. He is completely and utterly broken if this combination of items comes up. Short of a lucky Veigar ult from a higher level veigar, nothing in the game can even theoretically kill him once his ult pops. Since such an outcome is completely random, there is no build, team comp, or item combination you can go for to counter him. Once a player has this one unit, they are guaranteed to win 1st place. This combination needs to be disallowed, nerfed, or otherwise made impossible. It should not be possible to win the game based on getting a single unit and item combination.
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Am I a joke to you?