Valarn, Genesis Queen

Partner with Zel, Ninth Rebirth
Whenever a land enters the battlefield under your
control, add one mana of any color to your mana
pool and create a 1/1 green Zombie token.
{x}{x}{g}, {t}: Search your library for up to X basic
land cards, reveal them, and put them into your
hand. Shuffle your library. You may play an additional land this turn.
Reach