In this mode the user concentrates and builds up his Hyouton chakra for 2 rounds straight in which he cannot use any ice jutsu and then after 2 rounds are over he utilizes all this hyouton chakra and then enters the Freezing heavens mode. In this mode the users right hand gets covered entirely with ice and tapering towards the fingers of the users hand forms a very elegant shape of an open dragon's mouth with red ruby like eyes. This ice now stretches from his right hand and then onto his back where there forms two giant wings made completely of ice and then the user of this jutsu can utilize these wings to fly in the air. Also from the users back forms a huge tail which stretches upto mid range this too is made up of pure ice. When the user wields his sword in this mode the hilt of the sword gets a firm hold between the dragons mouth which improves his hold over the sword while his hand gets covered by ice but when he is not wielding a sword his hand is visible between the dragons mouth allowing him to use it freely. The user is able to store in his sword a lot of his hyouton chakra when he is not in battle using a special Kanji and then in the battle when he needs this chakra he is able to break the seal and therefore immediately enters the freezing heavens mode without the need to collect his hyouton chakra for two rounds.
-This mode remains active for 7 turns in a row.
-This mode can be used once a battle.
-There is no speed increase in this mode.
-All users ice and water attacks gain +25 attack/defense.
-All kenjutsu attacks gain +10 attack/defense thanks to the firm hold at the hilt of the sword.
-The user cannot use fire elemental attacks when in this mode.
-The atmospheric temperature of the battle ground drops by 30 deg celsius when this mode is activated.
-The sudden drop in the temperature causes the opponents fire jutsu to loose 20 attack.
-After this mode is used in a battle the user looses his ability for ice manipulation for the next 3 turns of the battle.
-Similarly the user is unable to do water techs above A rank for the next 2 turns.
-After the usage due to enormous strain on one's chakra system the user is unable to do more than 2 jutsu in the round following the deactivation of this jutsu.
-Can only be used by the yuki clan members.
Link to my ice release approved bio is present in my sig.