Uth, Undying Disciple

Lifelink
Reverence 3 - If you control Ser'Athana, The
Undying, at the beginning of the endstep of each
of your turns, you may pay {3}, and if you do,
populate.
{g/w}{g/w}{g/w}, {t}: Proliferate {x}{x} times, where X is
the number of times you've gained life this turn.
Her faith remains eternal.