Name:Slavering Nulls ManaCost:1 R Types:Creature Goblin Zombie PT:2/1 T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Player | IsPresent$ Swamp.YouCtrl | CombatDamage$ True | Execute$ TrigDiscard | OptionalDecider$ You | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, if you control a Swamp, you may have that player discard a card. SVar:TrigDiscard:AB$ Discard | Cost$ 0 | Defined$ TriggeredTarget | NumCards$ 1 | Mode$ TgtChoose DeckHints:Color$Black SVar:Picture:http://www.wizards.com/global/images/magic/general/slavering_nulls.jpg Oracle:Whenever Slavering Nulls deals combat damage to a player, if you control a Swamp, you may have that player discard a card.