The mythology IS really cool yeah. I've read lots of it. Also, yeet. I'm aware of the incomplete form. Here's a usage example.
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Azuma stared at the incoming fireball; gargantuan, truly. It towered over the very trees of the forest around him, knocking them over, not even bothering to ignite them simply due to its sheer gravitas. Despite this, he wasn't scared. He knew this technique. He knew how to defend against it, just as well. At a moment's notice, his eyes flickered through their stages of evolution, quickly arriving at his newest addition to his arsenal; the Mangkeyo Sharingan. Immediately afterwards, a light-green haze of chakra began to seep out of his body, swirling around him before solidifying and taking the form of a ribcage. The fireball made contact with him, and as his opponent had intended, exploded.
A moment passed.
Then, upon the dust clearing, despite the ruined wasteland that the attack had left in its wake, Azuma stood firm, not a speck of dust on him which had not been there before. He relaxed both of his eyes as the ribcage disipated, taking a deep breath. Powerful; but exhausting.
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Azuma stared at the incoming fireball; gargantuan, truly. It towered over the very trees of the forest around him, knocking them over, not even bothering to ignite them simply due to its sheer gravitas. Despite this, he wasn't scared. He knew this technique. He knew how to defend against it, just as well. At a moment's notice, his eyes flickered through their stages of evolution, quickly arriving at his newest addition to his arsenal; the Mangkeyo Sharingan. Immediately afterwards, a light-green haze of chakra began to seep out of his body, swirling around him before solidifying and taking the form of a ribcage. The fireball made contact with him, and as his opponent had intended, exploded.
A moment passed.
Then, upon the dust clearing, despite the ruined wasteland that the attack had left in its wake, Azuma stood firm, not a speck of dust on him which had not been there before. He relaxed both of his eyes as the ribcage disipated, taking a deep breath. Powerful; but exhausting.