Damage Over Time scales with the base Attack stat, not just the Special Skill Level.
You need to max him to 4-80 to get the full amount shown on the maxed card.
More here: Understanding DoT (Damage over Time)
Damage Over Time scales with the base Attack stat, not just the Special Skill Level.
You need to max him to 4-80 to get the full amount shown on the maxed card.
More here: Understanding DoT (Damage over Time)