Well, the reason why the list changes seem so sudden is because there are no actual pro players here to effectively update the list. This is why we rely solely on tier lists from content creators of Idle Heroes, which get released every few months or so.

As for your inquiries about Penny and Horus, Penny is a bit too inconsistent at endgame to be considered top tier anymore, and Slot 1 tanks aren't exactly game breaking in endgame PvP either.

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