Remembering the earlier technique she learnt, Tashigi began manipulating her ice chakra into the air around her again, this time adding more chakra into the attack. Once ready, she created the ice to form into literal ice spikes rather then needle sized. She controls them to free fall and attack the enemy striking vital points on the body and but before she released them, she simply jumped backwards to get out of the way of the technique.well it does protect from behind its udner you thats really open one earth jutsu and you're done.
Next the same thing as the needles before but a stronger version.
(Hyouton Hijutsu: Sensatsu Suishō no Shi) – Secret Ice Release: Flying Needles of Death and Destruction
Rank: B
Type: Offensive
Range: Short – Mid
Chakra cost: 20
Damage points: 40
Description: A stronger version of the original Flying Needles of Death gathers large amounts of Needles from the air and surrounding environment into more than a thousand needles. He then directs the needles to a specific target, and leaps back to avoid damage to himself. The difference is that these needles are literally icicle spikes, and after damaging the target the icicle spikes melt into a light cold rain.
The pros are pretty much the same as the original but id say due to the larger sized spikes, the con of avoiding by going upwards is rather harder now. The con to this would be the opening they are given bar the size of these spikes are sorta bigger, so its question able if they can avoid it better or sort. The can also move faster and harder to do the weight of the ice.