Actions

Multiattack. The giantess makes two Shamshir attacks. Shamshir of Ash is only available after the giantess has been bloodied.   Shamshir of Ice. Melee Weapon Attack: 1d24+10 to hit, reach 10 ft., one target. Hit: 25 ( 3d12+6 ) slashing damage and 11 cold damage. This attack scores a critical hit on a 20 to 24 and rolls a d7 on critical table G for additional critical hit results (DCC pg. 385). Once bloodied, this attack hits two adjacent targets.   Shamshir of Ash. Melee Weapon Attack: 1d24+10 to hit, reach 10 ft., one target. Hit: 25 ( 3d12+6 ) slashing damage and 11 poison damage. This attack scores a critical hit on a 20 to 24 and rolls a d7 on critical table G for additional critical hit results (DCC pg. 385). Once bloodied, this attack hits two adjacent targets.  

Bonus Action

Chilling Ash Strike (Recharge 5-6). As part of a Shamshir attack, the giantess hits for an additional 5d12+15 cold damage, and the target becomes vulnerable to cold and poison damage for the next 1 minute. The vulnerable creature can make a CON saving throw at the end of his next turn to end the vulnerability.   Circle of Ash (1/Day). When the giantess hits the same target with both Shamshir of Ice and Shamshir of Ash, she may also trigger Circle of Ash. All creatures within a 20-foot-radius sphere centred on the target hit by both shamshirs must make a CON saving throw as the temperature rapidly drops in the area of effect or take 5d8 poison damage or half on a success. The ash cloud persists, and any PC ending his turn in the ash cloud retakes the damage.   Frozen Kiss. The giantess kisses a creature charmed or grappled by her or a willing creature. The target must make a CON saving throw or be turned to ice and killed. On a success, the target takes 4d8 cold damage in any cold resistance or immunity is reduced by 1 step unless the target is already vulnerable. Pausing to kiss a target permits every other transfixed character the chance to make another Wisdom save to break the trance.

Reactions

Grab (Only when not bloodied). As a reaction to being attacked by a Medium or smaller creature within 15 feet of her, the giantess makes an attack roll 1d24+10 , and if she hits, the target is grappled (Escape DC 17) and takes 28 ( 4d10+6 ) bludgeoning damage and the giantess can use Frozen Kiss on the grappled creature. A grappled creature automatically takes 28 ( 4d10+6 ) bludgeoning damage at the start of his turn.   Share Pain (Bloodied only). If the giantess takes damage she instead takes half damage and the triggering attacker takes the other half.

Suggested Environments

Arctic, Mountain, Faerie, Para-elemental Plane of Ice