Blinding Advance

Blocking creatures gain -4/-0 until the end of the combat phase.
Kicker {1} (You may pay an additional {1} as you cast this spell.) If Blinding Charge was kicked, then additionally, blocking creatures lose First Strike, Double Strike until the end of the combat phase and creatures can only block 1 creature if they are able to block more than 1 and receive -5/0 instead until the end of the combat phase instead.