Squirmer of the Dark (CMF-054) [Crimson Moon's Fairy Tale]

[CONT] At the beginning of your main phase, put the top three cards from your magic stone deck into your graveyard. If you cannot put three cards into your graveyard this way, banish this card and you lose 1000 life. (If you have less than three cards in your magic stone deck left, put all cards from your magic stone deck into your graveyard instead.)