Failar, Elemental Mistress

Failar, Elemental Mistress gets +1/+1 for every elemental on the field
{1}{u}{b}{r}{g} Search your library for an elemental creature with power two or less and put it on the battlefield. Shuffle your library.
{4}{u}{b}{r}{g} Exile Failar, Elemental Mistress and return her to the battlefield transformed with
+1/+1 counters equal to her power when
exiled.