Discover the Formula 
Instant
Seek three nonland cards, then nonland cards in your hand perpetually gain "This spell costs 
less to cast."
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL
Instant
Seek three nonland cards, then nonland cards in your hand perpetually gain "This spell costs less to cast."