Final Fantasy X/Aeons

Shiva is found in Macalania temple. This ice-based summon spell has a long history across the Final Fantasy franchise.

Shiva's Fayth is a female wearing a cloak over her head. As an ice being, Shiva is auto-equipped with the Ice Eater ability, letting her add ice damage to her HP when damaged. Fire spells do extra damage to her.

Her Aeon attack is Heavenly Strike, and Diamond Dust is her Overdrive.

Heavenly Strike
Shiva drops a large chunk of ice on an opponent's head.

Diamond Dust
Shiva casts an icy plain across all enemies inflicting elemental ice damage(believe it or not). She then snaps her fingers in order to shatter the icy plain to a sea of icy shards, Leaving Diamond Dust an aptly named overdrive.