Theres no official upper bound for a constructed Magic the Gathering deck, though you generally shouldnt go above 60 unless you have a specific reason
Luffy Parallel from the OP09 expansion has quickly become one of the most coveted and expensive cards in the One Piece card game
And sometimes there just wont be that many infect creatures opened in pack 3
Aragorn, Hornburg Hero Renown is not an ability many aggro decks utilize, but Aragorn, Hornburg Hero rewards it handsomely and does some great work in your decks that want to attack
Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell
When paired with edict effects that can force each player to sacrifice a creature, Vren is going to create an unstoppable board very quickly, and that's ignoring all the death triggers that will occur as players attack and block each other's creatures