Final answer:
Hard CC reduces Scuttle's armor and magic resistance in League of Legends, making it easier to defeat.
Step-by-step explanation:
When a player uses crowd control (CC) on the Scuttle in the game of League of Legends, the Scuttle's resistances are significantly reduced. Specifically, any form of hard CC, such as stuns or roots, will reduce Scuttle Crab's armor and magic resistance. Initially, Scuttle has a significant amount of both resistances, making it quite tanky, but the application of CC reduces these defenses, making it much easier for players to defeat the Scuttle and claim the vision control and experience it provides.