Zoom, Speed Thief

Whenever Zoom or another creature
enters the battlefield under your control,
that creature gets +2/+2 until end of turn.
Dash {3}{b} (You may cast this spell for its dash
cost. If you do, it gains haste, and it's returned
from the battlefield to its owner's hand at the
beginning of the next end step.)
"You can't lock up the darkness"