Finished the first sheet, hope this gives a bit of insight as to what he looked like before the clash! Notably, during the first fight where Idatrus had plunged his sword into Phaedrus' chest, a lot of his armour was broken and torn apart, his crest was badly damaged revealing some of his "skull" (core energy??) and he lost control of his powers. When he emerged from the volcano, he is really unstable with his powers but had learned to command lava. However after he emerged he more gained control of the lava than the fire, so in the first image there there is no lava, and he's controlling fire. In the second it's more the opposite whilst at the same time dying. His body cannot handle both the powers, and having been stabbed it meant his body is now giving way, cracking and breaking
