Name:Nature's Will
ManaCost:2 G G
Types:Enchantment
T:Mode$ CombatDamageDoneOnce | ValidSource$ Creature.YouCtrl | TriggerZones$ Battlefield | ValidTarget$ Player | Execute$ TrigRememberTarget | TriggerDescription$ Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.
SVar:TrigRememberTarget:AB$ Pump | Cost$ 0 | RememberObjects$ TriggeredTarget | SubAbility$ DBTapAll
SVar:DBTapAll:DB$ TapAll | ValidCards$ Land.RememberedPlayerCtrl | SubAbility$ DBUntapAll
SVar:DBUntapAll:DB$ UntapAll | ValidCards$ Land.YouCtrl | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:PlayMain1:TRUE
SVar:Picture:http://www.wizards.com/global/images/magic/general/natures_will.jpg
Oracle:Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.