Rules Text

When Frost Lynx enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Return target creature to its owner's hand.

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Counter target noncreature spell.

Counter target spell unless its controller pays {4}.

Rules Text

Counter target spell unless its controller pays {3}.

Flying
When Cloudkin Seer enters the battlefield, draw a card.

{1}{U}: Target creature gains flying until end of turn.

Rules Text

Flying
Whenever Shriekgeist deals combat damage to a player, that player puts the top two cards of their library into their graveyard.

Enchant creature
When Sleep Paralysis enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Target creature gets -3/-0 until end of turn.
Draw a card.