I know their effects are still unconfirmed, but in case it is, i think i have a few bugs with the top cards mentioned.

I tried using Xyz Energy detaching 1 Xyz Material from Leadblow, but it didn't gain ATK. Its effect is compulsory - doesn't say, "you can". Also, it doesn't say that detaching needs to be the result of a card effect, so i guess by cost should work. Also, should that effect "activate" and not be a continuous effect? It has a colon there.

Every time i attack my opponent directly, I can't activate Counterblow's effect. It says "'Burning Knuckler" monster battles:".

I know their effects are still unconfirmed, but in case it is, i think i have a few bugs with the top cards mentioned.

I tried using Xyz Energy detaching 1 Xyz Material from Leadblow, but it didn't gain ATK. Its effect is compulsory - doesn't say, "you can". Also, it doesn't say that detaching needs to be the result of a card effect, so i guess by cost should work. Also, should that effect "activate" and not be a continuous effect? It has a colon there.

You are right, according to the currently available text this is indeed a bug. The card script is programmed to gain ATK only when it detaches a material for protecting a Burning Knuckler monster.

Wrong..

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According to the wiki, monsters are considered to battle even when they attack directly.

References:
Battling