Name:Sludge Strider
ManaCost:1 W U B
Types:Artifact Creature Insect
PT:3/3
T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Artifact.Other+YouCtrl | TriggerZones$ Battlefield | OptionalDecider$ You | Execute$ TrigLoseLife | TriggerDescription$ Whenever another artifact enters the battlefield under your control or another artifact you control leaves the battlefield, you may pay {1}. If you do, target player loses 1 life and you gain 1 life.
T:Mode$ ChangesZone | Origin$ Battlefield | Destination$ Any | ValidCard$ Artifact.Other+YouCtrl | TriggerZones$ Battlefield | OptionalDecider$ You | Secondary$ True | Execute$ TrigLoseLife | TriggerDescription$ Whenever another artifact enters the battlefield under your control or another artifact you control leaves the battlefield, you may pay {1}. If you do, target player loses 1 life and you gain 1 life.
SVar:TrigLoseLife:AB$LoseLife | Cost$ 1 | ValidTgts$ Player | TgtPrompt$ Select target player | LifeAmount$ 1 | SubAbility$ DBGainLife
SVar:DBGainLife:DB$GainLife | Cost$ 0 | LifeAmount$ 1
SVar:Picture:http://www.wizards.com/global/images/magic/general/sludge_strider.jpg
Oracle:Whenever another artifact enters the battlefield under your control or another artifact you control leaves the battlefield, you may pay {1}. If you do, target player loses 1 life and you gain 1 life.