Mavis - Tazri, Beacon of Unit

This spell costs 1 less to cast for each creature
in your party.
{2}/{u}, {2}/{b}, {2}/{r}, {2}/{g}: Look at the top six
cards of your library. You may reveal up to two Cleric, Rogue, Warrior, Wizard, and/or Ally
cards from among them and put them into your
hand. Put the rest on the bottom of your library
in a random order.