To me, i see crystal as Fire/earth. Most gems are made up of minerals in the earth under pressure and heat so, don't see why crystal would be any different.
But now lets down to the point. This is a kinjutsu as it really takes it's toll on you and it's sheer power behind it:
(Kinjutsu: Shishō Tenketsu) Forbidden Arts: Pressure Points of Harm and Death
Type: Supplementary
Rank: Forbidden
Range: Short
Chakra: 70 (-10 per turn)
Damage: N/A (+20 to Crystal Release, +10 to Taijutsu)
Description:
Guren releases two tenketsu points in her core, near the heart, opening them completely, to greatly increase her chakra for a short time by changing her life force into raw chakra, allowing the use of more taxing techniques and boosting her abilities. The amount of chakra released is so much that it causes a visible chakra effect similar to the one caused by opening one of the Eight Inner Gates. Her eyes momentarily go completely white as her speed and power increases, mainly with Crystal Release techniques. She becomes 1.5x faster and gains an additional +10 damage to ninjutsu and +20 to Crystal Release. Once its deactivated, she is left tired and drained, unable to use Taijutsu for 2 turns and mold chakra above A-rank in the turn it deactivates.
Note: Can only be used by Guren bios
Note: Can only be used once per battle and lasts 4 turns.
So break it down, whats good? WHat's bad? How would you use this?