Alastor is the lightning sword that you get in Mission 2. This sword will be useful all throughout the game. It allows a lot of mobility with it's techniques and the Devil Form is very useful, especially during the boss fights.

Special Moves

Stinger - Hold your aim button then hit forward and slash at the same time. Dante will thrust forward with a stab.
Level 1 Cost - 350 Red Orbs, Level 2 Cost - 1400 Red Orbs.

Round Trip - Hold your slash button. Dante will stand in a normally defensive stance (it's not so defensive in this game) and then will hurl his sword at the target. This stays hitting the enemy longer if you charge it longer. It also can pull other enemies in. While you have no sword, you can punch and kick by hitting slash.
Cost - 1550 Red Orbs.

Air Hike - Double jump anywhere. Hit jump then jump again.
Cost - 4000 Red Orbs.

Air Raid - While in Devil Trigger Mode, jump then hit your aim button. From there, start hitting your fire button. Dante flys and shoots lightning at the enemies.
Cost - 750 Red Orbs.

Vortex - While in Devil Trigger Mode, jump then hit your aim button. From there, start hitting the slash button. Dante will act as a human cannon ball spinning and ramming into enemies. Very power as it will take out most enemies in one or two shots.
Level 1 Cost - 1150 Red Orbs, Level 2 Cost - 2400 Red Orbs.