Bulging sack of snowflakes

Colourful and ice-laden, a bulging sack of snowflakes can be opened in any direction to raise a parade of magical icewalls for up to five rooms. The cold-inducing talisman has a cooldown of five minutes and cannot be used on one-way exits (such from the clouds towards the mainland)

Pieces:

(1) the cloth for a sack of snowflakes, level 1
(1) the snow for a sack of snowflakes, level 1
(1) the drawstring for a sack of snowflakes, level 1
(1) the icicle for a sack of snowflakes, level 1

Syntax:

OPEN SACK <direction>