Deals 2 stages of 140% ATK DMG each to a single enemy. The second stage ignores DEF. If the target is under [Freeze] status or is a Boss, increases DMG of the second stage to 140% of the original and removes 1 layer of buffs from the target; if not, there is a 40% chance to inflict [Freeze] for 1 turn. The summoned snowball effect of Joyful Ensemble will also be triggered when Icy Notes is cast proactively.

Summons 3 snowballs to attack a single enemy, for every 1 layer of [Surprising Gift · Snowball] owned by Jingle Belle, summons 1 extra snowball. Afterward, removes all layers of [Surprising Gift · Snowball]. Each snowball deals 2 stages of 65% ATK DMG each to the target, and the second stage ignores DEF. If the target is killed, the remaining snowballs will attack the enemy with the lowest HP percentage. Each time after 2 snowballs launch attacks, the next snowball will be transformed into a Christmas gift to attack the enemy, dealing DMG by 240% of the snowball.

At the end of the first self turn each wave, Jingle Belle gains [Christmas Rock'n'roll]. Afterward, she alternates between gaining and losing [Christmas Rock'n'roll] at the end of her turns. While owning [Christmas Rock'n'roll], Jingle Belle is immune to [Imprison], [Silence], [Horrify], and [Provoke], her Freeze Hit is increased by 70% and [Freeze] inflicted by her cannot be blocked. At the beginning of an enemy's turn, summons 1 snowball to deal 2 stages of 70% ATK DMG each to the enemy. The second stage ignores DEF. When an ally triggers pursue-and-attacks, grants the ally [Ensemble] for 3 turns if the remaining allies do not have [Ensemble]. Jingle Belle gains 1 layer of [Surprising Gift · Snowball] after she or the ally with [Ensemble] triggers pursue-and-attacks, up to 6 layers can be owned. Each ally with [Ensemble] can only grant Jingle Belle 1 layer of [Surprising Gift · Snowball] after each of their turns in this way.

Deals 2 stages of 52% ATK DMG each to all enemies 4 times. The second stage ignores DEF. If the target is under [Freeze] status or is a Boss, increases the 2 stages' DMG of the 4th time to 160% of the original; if not, there is a 60% chance to inflict [Freeze] for 1 turn. In the duration of playing [Christmas Rock'n'roll], regardless of the target's status, increases the 2 stages' DMG of the 4th time to 300% of the original.