Ja looked amazing in the comics.
It was such a kickMASK moment too. Villain combiners had appeared before, but they were always separate creatures like the Kuma-Nui. The Bohrok Kaita never appeared at all, mainly because Bohrok normally only appeared in swarms of their own kind, so they never got the three different ones in the right place.
The Kal, though, being sentient, intelligent beings, were able to form one. When the Toa Nuva tried to use Wairuha as a trump card in their powerless state, the Kal bit back with their own combined strength, using Unity against the Toa themselves.
Ja is great.
Edited for Language - Slime