Dean wrote:I feel like you'd have to freeze water super super fast to harm a lock.
Under most circumstances, probably. Otherwise the water would likely mostly leak out before it froze and expanded...depends on the shape of the lock, though.
deaddmwalking wrote:It'd be cool and thematic to have an ice spell that reduces an objects hardness to 0. Then you can smash locks and/or doors (and maybe bank vaults) with your bare fists after getting them cold enough.
Or hit it with a Fireball and rapidly heat something you've rapidly cooled, or the other way around.