Name:Spined Sliver
ManaCost:R G
Types:Creature Sliver
PT:2/2
T:Mode$ AttackerBlocked | ValidCard$ Sliver | TriggerZones$ Battlefield | Execute$ TrigPump | TriggerDescription$ Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.
SVar:TrigPump:DB$ Pump | Defined$ TriggeredAttackerLKICopy | NumAtt$ +X | NumDef$ +X
SVar:X:Count$Valid Creature.blockingTriggeredAttacker
SVar:PlayMain1:TRUE
Oracle:Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.
