Thinir, Blade of Frozen Thanes

Equipped creature gets +2/+2 and has vigilance.
As long as equipped creature is a snow creature, whenever it deals combat damage to a creature,
tap that creature and put a frostbite counter on it. As long as it has a frostbite counter on it, it
doesn't untap during its controller's untap step unless it's controller pays {3}.
Equip {3}
Equip snow creature {s}{s}