Name:Enduring Tenacity
ManaCost:2 B B
Types:Enchantment Creature Snake Glimmer
PT:4/3
T:Mode$ LifeGained | ValidPlayer$ You | Execute$ TrigLoseLife | TriggerZones$ Battlefield | TriggerDescription$ Whenever you gain life, target opponent loses that much life.
SVar:TrigLoseLife:DB$ LoseLife | ValidTgts$ Opponent | LifeAmount$ X
SVar:X:TriggerCount$LifeAmount
T:Mode$ ChangesZone | Origin$ Battlefield | Destination$ Graveyard | ValidCard$ Card.Self+Creature | Execute$ DBReturn | TriggerDescription$ When CARDNAME dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)
SVar:DBReturn:DB$ ChangeZone | Defined$ TriggeredNewCardLKICopy | Origin$ Graveyard | Destination$ Battlefield | AnimateSubAbility$ DBAnimate
SVar:DBAnimate:DB$ Animate | Defined$ Remembered | Types$ Enchantment | RemoveCardTypes$ True | Duration$ Permanent
DeckHints:Ability$LifeGain
Oracle:Whenever you gain life, target opponent loses that much life.\nWhen Enduring Tenacity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)
