Lin, Titan of Frozen's Weather

When Lin enters the battlefield, sacrifice it
unless it escaped.
Whenever Lin enters the battlefield or attacks,
tap all creatures target player controls. Those creatures don't untap during that player's next
untap step.
Escape—{w/u}{w/u}{w/u}{w/u}, Exile five other cards from
your graveyard. (You may cast this card from your graveyard for its escape cost.)