Suggestion - Ghost Faced Killer’s Frightful Attack

[SneakWalker]

Hello,

In its current state, my char. casts it look like the Burning Hands spell and it looks very silly. So, can't the cast of GFK's Frightful Attack fix like Bear Warrior's Roar? I think it would be more realistic.

If cast while stealth, there should be increase the DC.
i.e. When stealth, cast frightful attack instead of attack. Like a sneak attack. Sudden fear is more effective.

Frightful Attack
Specifics: Beginning at 3rd level, a ghost-faced killer can panic onlookers and even frighten his victim to death by making a sudden strike attack. The ghost-faced killer makes a single melee attack and the victim must make a Will save (DC 10 + ghost-faced killer's class level + Cha modifier).

The DC can fix as;
DC 10 + Ghost-Faced Killer's class level + 1/5 Sneak Attack dice(if in stealth) + Cha modifier.

It will sacrifice flurry and sneak attack damage for a turn.