Name:Devastating Mastery ManaCost:2 W W W W Types:Sorcery SVar:AltCost:Cost$ 2 W W | Description$ You may pay {2}{W}{W} rather than pay this spell's mana cost. | StackDescription$ If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner’s hand. Destroy all nonland permanents. A:SP$ Branch | BranchConditionSVar$ AltCostPaid | BranchConditionSVarCompare$ GE1 | TrueSubAbility$ OppChooses | FalseSubAbility$ DBDestroyAll | SpellDescription$ If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner’s hand. Destroy all nonland permanents. SVar:OppChooses:DB$ ChoosePlayer | Defined$ You | Choices$ Player.Opponent | ChoiceTitle$ Choose an opponent | SubAbility$ DBChangeZone SVar:DBChangeZone:DB$ ChangeZone | ChangeType$ Permanent.nonLand+ChosenCtrl | SelectPrompt$ Choose up to two nonland permanents you control to return to their owner's hand | Chooser$ ChosenPlayer | DefinedPlayer$ ChosenPlayer | AILogic$ Always | ChangeNum$ 2 | Hidden$ True | Origin$ Battlefield | Destination$ Hand | SubAbility$ DBDestroyAll SVar:DBDestroyAll:DB$ DestroyAll | ValidCards$ Permanent.nonLand SVar:AltCostPaid:Count$AltCost.1.0 Oracle:You may pay {2}{W}{W} rather than pay this spell's mana cost.\nIf the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand.\nDestroy all nonland permanents.