Hexplicate

You may pay {0} rather than pay the mana cost
for the next spell you cast this turn that has
mana value equal to this spell's mana value.
Transmute {2}{u}{r} ({2}{u}{r}, Discard this card:
Search your library for a card with the same mana
value as this card, reveal it, put it into your hand,
then shuffle. Transmute only as a sorcery.)
Madness {0}