Ah, Token Sundae. This is one of the more "useless" cards in YuGiOh, however, it can find its uses. This card works by destroying all Tokens you control and then destroying cards on the field up to the number of Tokens you destroyed.
This card works great in "Junk" decks that utilize tokens for syncho symmoning. Dandylion and Doppel Warrior both create tokens on the field and adding a Scapegoat and increase the usefulness of this card even more.