Name:Niblis of Frost
ManaCost:2 U U
Types:Creature Spirit
PT:3/3
K:Flying
K:Prowess
T:Mode$ SpellCast | ValidCard$ Instant,Sorcery | ValidActivatingPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigTap | TriggerDescription$ Whenever you cast an instant or sorcery spell, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.
SVar:TrigTap:AB$ Tap | Cost$ 0 | ValidTgts$ Creature.OppCtrl | TgtPrompt$ Choose target creature an opponent controls. | SubAbility$ DBPump
SVar:DBPump:DB$ Pump | Defined$ Targeted | KW$ HIDDEN This card doesn't untap during your next untap step. | Permanent$ True
SVar:BuffedBy:Instant,Sorcery
SVar:Picture:http://www.wizards.com/global/images/magic/general/niblis_of_frost.jpg
Oracle:Flying\nProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)\nWhenever you cast an instant or sorcery spell, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.