Meirda's Gateway

Whenever a Spider or Drider you control attacks,
it gains Devour 1 until end of turn
{1}{t}: Add {b}{g}.
{3}{t}: Put a devour counter on target creature
you control. (When this creature dies, its owner
creates a 1/2 green and black spider creature token.)
"Join your brethren! We shall cull their numbers and
grow our borders." - Meirda, Web Mystic