As much as you rage at the idea that Tatsuki went into a potentially deadly fight while shackled by a binding spell, you restrain yourself from trying to break it. The potential for getting yourself kicked out of the tournament is honestly a secondary concern here; the main consideration is that seals of this level of complexity are not something thrown together on a whim. Somebody had to really believe that it was necessary to bind Tatsuki - and that somebody had the magical skill to weave a spell incorporating elements from six of the major schools. You've reason to know that stacking schools like that tends to increase the effectiveness of the final spell, even if its component parts aren't that powerful. The Sages of Hyrule did it when they sealed Ganondorf, although you're a little unclear as to how many parts that spell had. Each Sage obviously counts as one, which should make it seven, but Link was also involved, as were the Master Sword and two-thirds of the Triforce, and that could bring it all the way up to an eleven-point seal. Although, you're pretty sure there were two other Sages...
You shake your head to dismiss the memories. The point is, a six-part seal is pretty potent, so there's a good chance that whatever it's locking away is strong enough to merit the effort it would have taken to cast the sealing spell. Granted, that's not the only option - the seal may be addressing an issue that is, itself, very complicated - but the risk that tearing the seal open will cause Tatsuki to blow up, turn into a minor demon lord, or suffer some other source of serious harm is significant enough that you don't want to chance it based purely on a surface scan and your personal sense of moral outrage.
Letting your first divination spell lapse, you call up another one, specifically attuned to the working of magical forces, and focus it on the seal.
The first thing you're able to confirm is that whoever cast the spell was out of your league as a sorcerer. Under this detailed scan, you're able to make out unfamiliar glyphs scribed into the links of each chain, each one representing the commands that make up the magic. A single link has a dozen that you can see, and there are dozens of links in the chain. You could break the binding if you poured enough raw power into it, but you couldn't hope to repair it afterwards.
The second thing you conclude is that the seal does, in fact, affect Tatsuki on all levels. Much smaller and lighter chains that you weren't able to see using your previous spell reveal themelves to your current one, and these extend from the central mass of chains out to Tatsuki's hands, feet, and even her head. All of the chains are imbued with abjurative and divinatory elements, the former being the core of the overall spell, the latter most likely being its means of monitoring itself and its target, and adjusting for changes in either. The aura of augmentation magic is everywhere as well, but you're not certain what exactly it's doing - it may have more than one function. As for the lesser auras, a set of links running up the back of Tatsuki's neck are where the enchantment magic is strongest, though even then, it's pretty faint - the chain looks like it was taken from a piece of jewelry, next to the almost cartoonishly large prison-chain of the main body. That's not nearly potent enough to be a form of control or compulsion; it's more like the spell you use to encourage people to ignore or accept Moblin's presence. The links that incorporate aspects of transformation are stronger and run to every limb, and their rune-like markings flash each time Tatsuki moves. That should mean that they're changing her form, right now, yet Tatsuki doesn't appear any different - which in turn suggests that the transformative element is countering a change Tatsuki's body is trying to activate on its own. Then there's the chains that bear an aura of necromancy; these aren't in direct contact with Tatsuki's body that you can see, instead floating on the outer edge of her aura. Like the transformation magic, some of the runes on these links are flashing in a manner that implies activity, but at least half of them remain lit at all times, even in the brief instants when Tatsuki stops moving and the other necromantic markings go dark.
"And ten!" the Announcer calls out. "Winner, Gorn!"
The young demon lifts his foot from Tatsuki's back and departs the ring without a word. Tatsuki remains sprawled out on the tiles for a moment, before slamming one fist down. Even as she hauls herself to her feet and bows respectfully to the officials, her entire bearing reeks of anger and shame, and when you see her face...
Yeah. Outclassed by a demonic warrior or not, she's not taking the loss very well. The image of the otherworldly chains - still rattling and flexing despite the match being over - do nothing to make Tatsuki look any more composed.
"That brings an end to our second round, ladies and gentlemen," the Announcer continues. "Seeing as how we just about flew through the last five matches, we'll be taking a fifteen minute break to give our young quarter-finalists a chance to catch their breaths. In the meantime, to help fire their spirits and yours for the battles ahead, we present, the awesome spectacle of the invincible PRISM RANGERS!"
Most of the lights in the arena suddenly go dim, as a few spotlights begin to sweep around wildly and an unfamiliar soundtrack plays. You hear a voice speaking over the intercom in grandiose oratorical form:
"When the darkness of evil is on the rise, we crash the villainous party! Our seven lights spring to the task, to save the world with courage and hope! With our powers combined, we are-"
Half a dozen clouds of technicolor smoke explode in the middle of the ring.
"Prism Red!"
"Prism Orange!"
"Prism Yellow!"
"Prism Green!"
"Prism Blue!"
"Prism Indigo!"
"Prism Purple!"
The jumpsuited, helmet-wearing, wildly-gesticulating figures leap about and land together in a group pose.
"PRISM RANGERS!"
And more smoke and fire erupts from out of nowhere, to the sounds of much cheering and applause from the audience.
...what?