Rimescale Dragon 
Snow Creature — Dragon
Flying
: Tap target creature and put an ice counter on it. ( can be paid with one mana from a snow source.)
Creatures with ice counters on them don't untap during their controllers' untap steps.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL