Nolix, Dominus of Infinity

{5}: You may search your library for up to three
instant and/or sorcery cards with different names
and exile them and you may remove a knowledge
counter from Nolix. If you do, Nolix gains the
abilities of target exiled instant or sorcery until.
For as long as they remain exiled, you may spend
mana to cast them as though it were mana of
any color to cast it.
{2}: put a knowledge counter on Nolix.