Giant Eldrazi doom king

Deathtouch, Flying, Haste
When Giant Eldrazi doom king enters the battlefield you may have it deal 10 damage to any target.
{2}{b}{b}{b}{b}: you gain 10 life and add {c}{c}{c}
{b}{b}{b}{b}{b}{b}{b}{b}: destroy 4 target permanents. You gain 1 life for each land destroyed