Seer's Secret

This card cannot be countered
Hexproof, Flying, Trample, Flash
You can exile 4 (from your hand, field, graveyard)
different angel legendary creature cards with
"Commander" in their names to cast this card
from your side deck. When this card is cast tap
all other cards on the battlefield that can be
tapped, and they don't untap during your
opponent's next upkeep.