User blog comment:B214/Question and Answers 6/@comment-185.112.105.215-20170106035554/@comment-10330822-20170106184250

Except can it really be considered that? Most irregular balance breakers, that is their natural state. Issei's is just an addition. Kiba and Saji can't access to the "regular" forms of their balance breaker, their powers have changed the very nature of the balance breaker.

Issei can still access the regular Scale Mail, he can just upgrade it with different powers using Promotion.

Honestly, The CCP is just a combination of the Juggernaut Drive and his Promotion skills, the Queen. It seems that Ajuka changed the pieces themselves to allow the promotions to help Ise control the Juggernaut's power in different forms. So he didn't need Juggernaut to increase his speed, he had Welsh Sonic Boost Knight, he didn't need it for power or magic, he has the Rook and the Bishop forms.

So, its not really irregular in the traditional sense. However, its neither regular either. It's its own thing. No other character has that kind of flexibility with their powers. Sairaorg can't just access the speed of his Breakdown, and Vali can't just access the speed of his Empireo Juggernaut either.

So I feel uncomfortable calling it an "irregular balance breaker", because that is classifying it as something it isn't. Issei has a regular balance breaker, Scale Mail, the Illegal Move Trinia is something else entirely.