A couple of sketch batches that shows off Kai's use of darkness/shadow manipulation. The first one was from last year and the 2nd one was fairly recent, both of which were shown on my twitter.
He can easily solidify the dark matter and make it take shape of whatever he likes. His personal favorite is the use of large claws that can extend to great lengths to reach his opponents. Secondly is the 'fire' breath. While he can make use of regular fire breath, he's just known more to make use of the dark version.
Kai © me