Perilous Thought Stealer

When Perilous Thought Stealer deals combat damage to a player, put the top two cards of target players library into your hand.
{ut}, Pay 3 life, reveal your hand, sacrifice a creature, tap two target permanents you control, they don't untap during their next untap step, discard a card; Put a card from your hand onto the battlefeild that was put into your hand this turn from another players library.