Delirium delving

Whenever an opponent discards a card Delude 1
(look at the top card of your library. You may put it
face down as 2/2 colorless delusion creature) then:
•If the card is a land card add {b}.
•If the card is an enchantment card add {r}.
•If the card is a creature card deal 1 damage to
each opponent.
{bull}If the card is a non-enchantment non-land
non-creature card you gain 1 life.