"She keeps splashing us with this stuff and getting us frozen!"
The companion version of Momma Kaine is in the second objective of the Kaines' Dinner of Doom event, Recruit Momma Kaine. She occupies the center of the fourth column of the formation and has the debuff "Liquid Nitrogen", which occasionally freezes a random adjacent crusader reducing their DPS to 0. However, their buffs and abilities are still active while frozen.