Knight of Night

This card can only be played the turn after you've
casted a Night type creature, and is treated as only
a Light type while in your hand. Light creatures
you control have Trample. Once per turn, if this
card would leave the field, you may return it to
the field, tap it, and deal five damage to target
creature or planeswalker, this ability cannot be
activated at the beginning of your upkeep. You
may only cast Night creature cards the turn after
this card comes into play. At the beginning of the
up