I would have thought the thakrian to thakrian trigger sharing system would have been alot faster. For this is the one simple trigger I have observed on a few of my attempts at getting a freeze:

For the mage: sip fire potion, chant pentacle, cast

For everyone else: sip fire potion, point charmed item

make that a cold potion

Written by my hand on the 11th of Agamnion, in the year 1122.