Characters such as "Yamcha" of "Use special skill once" of the challenge may be specified.
This is a special skill
The green card on the far right of the image is a special skill. If you activate a special skill using a special arts card, you will complete the challenge.
It is not reflected easily
Using a green card in a cell won't clear it
I think it fits because I use a green card
Is it more than once?
It seems that if you can avoid things such as Taiyoken that activate the effect by hitting the enemy, it will not be counted as the number of times you used
You can do it with a complete cell (red: SP)