Slithering Master, Jek

Flash, Deathtouch, Lifelink
Whenever you cast a spell during an opponent's
turn, you may draw three cards, if you do put
three cards from your hand on top of your library
in any order.
Reveal the top 7 cards of your library, then put
them on the bottom of your library in any order:
If a creature, artifact, enchantment, instant and sorcery are each revealed, Slithering Master, Jek
deals 7 damage to each opponent.