This page describes Astaroth's Battle Style in each of the games in which they have appeared in.
Astaroth's moveset relies on heavy yet somewhat slow attacks using a giant axe. He has several easy to perform unblockable attacks and throws which are performed differently than normal throws.
Astaroth's style is the same as in Soulcalibur with a few changes.
His style is still pretty much the same as it was in previous games.
Same as Soulcalibur III.
Same as previous games but with a few changes and new throws. This is shared with Ashlotte.
Same as Soulcalibur IV.
Same as Soulcalibur: Broken Destiny.