[quote=@Skallagrim]
Yes I know Melon but what prevents you from having ice as part of your battle ground? Ice flows accelerated by a current of water can be a powerful tool.
[/quote]

Waste of energy and flexibility, my character would have to concentrate on melting the Ice to move it around, save in a second hand fashion by pushing at it with water, which would be slow and easily avoided as building up water pressure also takes time to charge.