Dueling Grounds 
Enchantment
No more than one creature can attack each combat. No more than one creature can block each combat.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Enchantment
No more than one creature can attack each combat. No more than one creature can block each combat.