Yareli, the Selfless

Transference (This card is tapped unless equipped
with an operator.)

When Yareli, the Selfless enters the field, you
can equip Merulina to this card from your
hand, library or graveyard without paying its
mana cost.
{u}{u}{t}: Add 1 prime counter to this card. If there are three or more counters on this card, remove those counters and transform it.