Floowandereeze & Robina

To cast this spell, you may sacrifice a Bird on your field instead of paying its mana cost. When this creature enters, you may search your library for a Blue or Green Bird creature spell with mana value 3 or lower, reveal it, add it to your hand, then shuffle. You may then immediately cast that card. During the turn this enters your field, creatures cannot enter your field, except by casting them. When this spell leaves the field, Exile it. If this spell is in Exile and a Bird enters your field, you may pay {1}, return this spell to your hand.{/fontsize27}