Spectral Denial 
Instant
This spell costs 
less to cast for each creature you control with power 4 or greater.
Counter target spell unless its controller pays .
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
This spell costs less to cast for each creature you control with power 4 or greater.
Counter target spell unless its controller pays .