LogFAQs > #970951226

https://youtu.be/RP1FRaelzc8

Aigis is a walking arsenal. Inside of her frame is tons of weapons - literal finger guns, gattling guns, assault rifles, sniper rifles, grenade launchers, missile launchers, rocket boosters, you name it. How accurate is she? She was able to infiltrate a plane filled with terrorists and handcuffed each of them before they could fire a shot at her, one of them being disabled because she removed a button from another mans coat and flicked it at his forehead fast enough to disable him AND before he could pull the trigger on his pistol. Were talking ridiculous accuracy here. This is not what Aigis is here for. Please, feel free to look at Aigis spells:

Freidyne - Heavy Nuke Attack
Diarahan - Fully restores one allys HP
Matarukaja - Increases partys attack
Marakukaja - Increases partys defense
Masukukaja - Increases partys Hit/evasion rate
Marakunda - Lower defense (all enemies)
Aegis Shielding - Null Fire/Ice/Elic/Wind/Psy/Nuke damage to users row (requires active focus)
Samarecarm - Revive and restore all HP (1 ally)

This is in addition to physical arts like Agneyastra, which is just a meteor storm, and Gods Hand, where the fist of a holy lord comes down to punch someone in the face, some of these strongest physical skills available in the Shin Megami Tensei series. Aigis is not here to deal direct damage - she is here to ensure that not only does Kirby live, he is stronger that he could ever possibly be. Any damage Kirby takes, healed off. Stray elemental blows from Zenos, those arent gonna affect Kirbo through Aegis Shielding. He goes down for ANY REASON, and she gets him right back up to full. This also might passively help Sagat, too, which would be neat because the guy deserves his w against Kiryu. Selvaria has one revive in this fight. Kirby has as many as his friend will allow for. And Kirby ALWAYS protects his friends, no matter how far he has to go to do so. And because Kirby is so overwhelming offensively, Aigis can be allowed to focus on her support capabilities, purely avoiding damage and making sure Kirby either does the same or recovers from it. She CAN shoot out but she doesnt need to.

Oh, and if Tusk goes down she can probably prop him up, too. I dont see her healing him mid-fight because thatd definitely aggro Zenos to her and shes gotta support Kirbo, but if he loses (which will take longer than beating up Selvaria and Tifa)?

But just in case, we do have one more little trick for you. Ysee, Kirby has brought his Vivi form in here, too. Now, Vivi has an auto-reflect status cast on him in mercs. Kirby has some decent battle precog through Zenos. If Zenos would, say, get a huge attack that Kirby would happen to be in the way of, well, swapping to Vivi to bounce it back at everyone else wouldnt be too hard! Then he can go right back to Zenosing after he Zenosed your Zenos. Regardless of who wins Tusk v Zenos, Kirby will be there. He will be well rested. He will probably be buffed. And he will be ready to win. Pure offense was brought to a battle of attrition, glory seeking a great battle, and it loses in the face of a far greater force. Friendship.

tl;dr

-Kirby and Aigis escape, Selvaria will explain her orders INSTANTLY, she will know things are already going wrong and WILL stop her lord from ruining his own play however possible. Zenos likes fighting a worthy foe too much to waste the opportunity, Kiryu respects women.
-Aigis heals off all of her damage. During all fights, she is able to null all magic damage to Kirby besides darkness, and can revive Kirby on command.
-Tusk is durable enough and WARRIOR, LITERALLY REVIVED BY LIGHT enough to keep Zenos attention for pretty much the whole fight, if not actively give him a great fight.
-Anything Zenos can do, Kirby can do just as well. Selvaria and Tifa dont stand a chance with the AoE within the tighter confines of Gruntys Lair
-Sagat and Kiryu can have a cool man fight somewhere else if they want. It doesnt matter who wins, just imagine them having it.
-Aigis prevents Kirby and herself from being caught in AoE nonsense. Selvaria and Tifa do not have this luxury.
-Kirby can get auto-reflect when he feels like it.
-The simple thing is that healing and defenses provided by Aigis mean that this is a battle of attrition that can be won, and her natural mobility and reflexes are enough to keep herself alive while playing support.