Envoy's World, Envin

{t}: Add {w/b}{w/b} to your Mana Pool.
When Envoy's World, Envin enters the
Battlefield sacrifice it if you dont control at
least one Creature with the Creature type
Envonic.
{t}{w/b}{w/b}{b}: Sacrifice a Envonic Creature Token,
then make a Copy of each Envonic Creature
token you control.