The Wyvern prepared for his strongest skill, the Wind Tornado. The skill affects a wide area and is also powerful enough to knock out Rank-C humans.
The only downside of this attack is that it takes too much time to charge. However, it was no problem here because nobody had a powerful enough long-range attack to disturb the Wyvern leader.
I could try to use my Dual Art: Shadow Ice Shard but there were other Wyverns standing in front of the Wyvern leader to defend against the enemy attacks.
I still had another option, though I was not sure whether I can pull it off or not but it was better than doing nothing. I poured in the remaining mana and released the Ice energy.
[ "Ice Embodiment: Ice Creation" ]
I used all my mana to create something like a big stair of Ice for the students to climb and reach the Wyverns. The other Wyverns can be taken care of by other students while Hiro could go and disturb the Wyvern leader.
-SHHHHIIIIIIIIISSSS!