Name:Game Preserve
ManaCost:2 G
Types:Enchantment
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigReveal | TriggerDescription$ At the beginning of your upkeep, each player reveals the top card of his or her library. If all cards revealed this way are creature cards, put those cards onto the battlefield under their owners'control.
SVar:TrigReveal:AB$ RepeatEach | Cost$ 0 | RepeatPlayers$ Player | RepeatSubAbility$ EachDig | SubAbility$ GoToBattlefield
SVar:EachDig:DB$ Dig | Defined$ Remembered | DigNum$ 1 | Reveal$ True | NoMove$ True | RememberRevealed$ True
SVar:GoToBattlefield:DB$ ChangeZoneAll | ChangeType$ Card.TopLibrary | Origin$ Library | Destination$ Battlefield | ConditionCheckSVar$ X | ConditionSVarCompare$ EQ0 | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:X:Count$ValidLibrary Card.nonCreature+IsRemembered
SVar:RemRandomDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/game_preserve.jpg
Oracle:At the beginning of your upkeep, each player reveals the top card of his or her library. If all cards revealed this way are creature cards, put those cards onto the battlefield under their owners' control.