Prismatic Blade-Cannon

When useing this attack 7 swords shall arise around the caster, lasers will shoot from the outwards blades towards the middle one in the shape of a pentagram and rise to the sky, creating a shockwave which damages the enemies.
This technique does enough damage to fell most monsters in one attack, although for stronger enemies, a normal attack may be preferable due to the animation being so slow. but its looks appeal greatly. So its a very fun attack. 
at level 50 with reasonable gear, this attack starts off at doing well over 2000 damage.