Spider Infestor

( {p/b} Can be paid with either {b} or 2 life.)
Lifelink
When spider mage enters the battlefield summon
a 2/4 spider token creature.
Dash {2}{p/b}{p/b} (You may cast this spell for its dash
cost. If you do, it gains haste and it is returned
from the battlefield to the owner's hand at the
beginning of the next end step.)