Devil sword Dante (Awakened)

Magic weapon 3, two handed, Add fly 120 ft.
1d12 Slashing damage.
4d6 fire damage.
Any atk success create 1 sword (1d12)
Resistance to all damage.
Use all sword(1d12 fire) to damage
all enemy in 30 ft radius; and return
to original form.
Time form: 4 rounds.