Looking over the entries on this page, I'm wondering if Great Tusk really qualifies. Its description says that it's not considered overwhelming due to its weaknesses keeping it in check, and is appreciated by high-level players for its role compression and utility. It's not like Kingambit and Gholdengo, where their presence is considered to make OU worse by a sizeable fraction of players.
Looking over the entries on this page, I'm wondering if Great Tusk really qualifies. Its description says that it's not considered overwhelming due to its weaknesses keeping it in check, and is appreciated by high-level players for its role compression and utility. It's not like Kingambit and Gholdengo, where their presence is considered to make OU worse by a sizeable fraction of players.