If dad had a European longsword, his son wouldn't stand a chance...
The dad receives 150x10=1500 damage (-1200/300) (death).
Iaido (x2)
A Warrior can make a surprise attack on an enemy next to him. Such an attack, if successful, deals ten times more damage. Stealth from agility (1.0) for this attack is one and a half times higher. Only outside of battle.
Where do we end up when we save the world?