Salaya, Soul of the World

Trample, reach
{t}: Add {c}
Landfall — Whenever a land enters the battlefield under your control, you may add
one mana of any color to your mana pool.
{u}{b}, {t}: Proliferate. Activate only as a sorcery.
{b}{r}, {t}: Sacrifice Salaya, Soul of the World, destroy all nontoken creatures. Activate only if you lost 10 or more life this round.