User blog comment:Tatsuya Kurodake here yo!/How many times can you attack in one turn? (Best formation)/@comment-839017-20151123222629

Most possible attacks at this point is a tie between Purgatory Knights with Demios Inferno and an HD or Armordragon deck based around Iyonorasetsuryu. Both are capable of launching 7 attacks a turn with proper field setup, though launching 7 with the P-Knight build involves sacrificing 2 monsters and D-Inferno's own Soul.