Encroaching Shadow

Legion {b}{b} (At the beginning of your upkeep, you
may pay {b}{b}. If you do, create a token that's a copy
of this creature.)

{b}: Shades you control get +1/+1 until end of
turn. This ability costs {1} more to activate for
each other Shade you control.
_________________________________________
It spread under Innistrad's moon like a wildfire in the
woods of Kessig.