Skyline Cascade enters the battlefield tapped. When Skyline Cascade enters the battlefield, target creature an opponent controls doesn't untap during its controller's next untap step. {T}: Add {U}.
When Slayer's Bounty enters the battlefield, look at the creature cards in target opponent's hand. Whenever you sacrifice Slayer's Bounty or another Clue, draft a card from Slayer's Bounty's spellbook. {2}, Sacrifice Slayer's Bounty: Draw a card.