The 7D: Season 2, Episode 8

2 - 8: You Ain't Seen Nothin' Yeti! | Which Witch is Which?

You Ain't Seen Nothin' Yeti! - After Hildy casts a spell on the 7D that turns them into mimes, Grumpy leads the group on a dangerous mission to retrieve their lost voices from the Cave of the Yeti.

Which Witch is Which? - When Grim borrows Hildy's duplicating wand, he accidentally creates a Hildy clone.