Name:Oni Possession
ManaCost:2 B
Types:Enchantment Aura
K:Enchant creature
A:SP$ Attach | Cost$ 2 B | ValidTgts$ Creature | TgtPrompt$ Select target creature | AILogic$ Pump
S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddPower$ 3 | AddToughness$ 3 | AddKeyword$ Trample | Description$ Enchanted creature gets +3/+3 and has trample.
S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddType$ Demon & Spirit | RemoveCreatureTypes$ True | Description$ Enchanted creature is a Demon Spirit.
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigSac | TriggerDescription$ At the beginning of your upkeep, sacrifice a creature.
SVar:TrigSac:AB$Sacrifice | Cost$ 0 | Defined$ You | SacValid$ Creature
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/oni_possession.jpg
Oracle:Enchant creature\nAt the beginning of your upkeep, sacrifice a creature.\nEnchanted creature gets +3/+3 and has trample.\nEnchanted creature is a Demon Spirit.