Martyr's Oracle

Imprint—Whenever you tap more than 3
creatures under your control, you may exile a
noncreature, nonartifact, nonland card from
your hand.
{t}: you may cast the exiled card by paying for
its {x} only. if the card has a "draw" or "scry"
on it, you may cast it without paying for its
converted mana cost.