Limited Resources 
Enchantment
When this enchantment enters, each player chooses five lands they control and sacrifices the rest. Players can't play lands as long as ten or more lands are on the battlefield.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderNOT LEGAL