Ki Blast is enough.

Dragon of the Darkness Flame

Kamehamehaha

The kamehameha has a lot more history behind it(if we are comparing lore), it can be performed in a myriad of ways and is way, way more destructive(if we are comparing practicality and effectiveness).

Dragon of the darkness flame has a more appealing cinematic output(especially with Hie's overly-dramatic performance and the emphasizing was to a much greater extent than the kamehameha ever gets tbh), while in earnest it is one of my favorite moves, I can't say that it is the best one out there, there is more to a move than just presentation.

If DOTDF was spammed each and every episode, it would be overly redundant, which brings me to my next point. The kamehameha is a normal move, DOTDF is an epic move, they can't really be compared.

List of epic moves that the DOTDF can be compared to:

• Dragon Fist

• Hakai

• Spirit Bomb

• kaioken x20 kamehameha

etc.

DOTDF is not the best ultimate, while Kamehameha is the best normal move there is.

Kamehameha was never half as cheap a move as DOTDF could be.