Queen Marika, Golden Goddess

Vigilance, Lifelink, Indestructible
Legendary Creatures you control get +x/+x
where x is the number of legendary permanents
you control.
{2}{w}{u}{b}{r}{g}: Until end of turn, if you control
exactly 5 Great Rune cards, exile Queen Marika,
Golden Goddess. Return it to the battlefield transformed under your control.