Ice Release: Ice Breaking Sledgehammer

Jutsu History
The user surrounds their fists with ice, increasing their striking power or, alternatively, allowing them to use their fists to block stronger attacks than they would be able to otherwise.

Strengths:

 * Increases striking power
 * Blocks some stronger attacks

Weakness:

 * Fire Release weakens or can melt it
 * Can crack and break if hit too many times