Rakdos Sanctorum

Spectacle {2}{b}{r} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent
lost life this turn.)
Whenever Rakdos Sanctorum enters the battlefield, sacrifice up to X nonland permanents,
where X is equal to the number of Shrines you control. For each permanent sacrificed this way,
target opponent sacrifices 2 nonland, non-
enchantment permanents, discards 2 cards, and
loses 2 life.