Ice Release: Ice Dome

Nnjutsu (Ice)
Level: 	B (5)
Hand Seals: 	Hands facing outward
Casting Time:	1 standard action.
Range: 	short 40-50ft
Area: 	Sphere
Duration: 	1 round /caster level.
Saving Throw 	None.
The user can quickly freeze the surrounding air and create an ice dome around himself/herself and/or allies to act as a defense. It is strong enough to withstand the assault of many explosive tags at once, remaining almost undamaged.
The dome cannot move, but it is immune to damage of all kinds, and it is unaffected by most jutsu, including dispelling Jutsu. However, Partical style  immediately destroys it.