Name:Cauldron of Essence
ManaCost:1 B G
Types:Artifact
T:Mode$ ChangesZone | Origin$ Battlefield | Destination$ Graveyard | ValidCard$ Creature.YouCtrl | TriggerZones$ Battlefield | Execute$ TrigLoseLife | TriggerDescription$ Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
SVar:TrigLoseLife:DB$ LoseLife | Defined$ Player.Opponent | LifeAmount$ 1 | SubAbility$ DBGainLife
SVar:DBGainLife:DB$ GainLife | Defined$ You | LifeAmount$ 1
A:AB$ ChangeZone | Cost$ 1 B G T Sac<1/Creature> | Origin$ Graveyard | Destination$ Battlefield | ValidTgtsDesc$ creature card in your graveyard | ValidTgts$ Creature.YouOwn | SorcerySpeed$ True | SpellDescription$ Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.
DeckHas:Ability$LifeGain
Oracle:Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.\n{1}{B}{G}, {T}, Sacrifice a creature: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.
