#since the light dragon is canonically present during the calamity because zelda was sent back thousands of years..

[comixandco]

The four Sages were called back into the past by Terrako and they remember it happening

Tulin got to meet his hero, Revali, and decided to be just like him, adopting his idol’s brash personality and drive. He practises Revali’s Gale and eventually comes up with his own way to show off his mastery of wind, and when trouble hits his home he rushes to fix it on his own to prove how strong he has become and because, like Revali, he can’t stand idly by while he knows there’s still things he can do.

For Yunobo, when he goes back and meets his ancestor Daruk, he is a very timid and reactive Goron. He needs a push from others to come up with ideas and carry plans through, and when bad things happen to him his first instinct is to use his fire magic as a shield, to wait until the threat has passed by or somebody else has come to save him. But when he is sent back in time to Divine Beast vah Rudania, for the first time he has to be the one doing the saving. Daruk encourages Yunobo and is proud of him from the moment they meet, and it’s this support that gives Yunobo the confidence to help fight against Calamity Ganon, and to start YunoboCo when he gets home.

For Sidon, meeting his family from 100 years ago is bittersweet. He is proud that he was able to protect his sister, and it’s a comfort to know there is a version of him who will grow up alongside Mipha because of his bravery and fighting prowess. But as much joy as he got from seeing her, hugging her, and hearing her voice again, it just reminds him of how unfair her death was, of just how young she was when she died and how he is now older even though he’s the younger sibling. And at the end of the war, when he’s returned to their original time, he has to readjust to her absence all over again, and in light of that is it really a shock he’d have her statue moved further away from his home? And it also explains why he’s so desperate to protect Yona from the sludge.

Riju in AoC still a new ruler to her people, despite her accomplishments in BotW, she still feels guilty over the temporary loss of the Thunder Helm and isn’t sure if she can lead the Gerudo. She has a lot of confidence but is quick to falter when things go wrong. Urbosa treats Riju as a capable fighter despite her young age, and teaches her that she should never give up, to keep trying even when her resolve falters. There is always something you can do, even when it’s just stalling for time until help can arrive. Urbosa guides her in mastering the Thunderhelm, and possibly begins teaching her to summon lightning herself after Kohga attempts to steal it, and at the end of their time together Urbosa tells Riju she’s certain she’ll lead the Gerudo well. Riju treasured her time being mentored by Urbosa so much that she considers what Urbosa would do during the Upheaval in her diary in TotK.

I think the entire reason Tulin was added to the DLC was because the TotK team had already decided that Tulin was going to be the Sage of Wind, and that since the other sages were going to meet their Champions Tulin had to as well.

At some point in the years between Botw and TotK Teba, Tulin, Sidon, Yunobo, Riju and Patricia were summoned back in time by Terrako to aid the Champions during the Calamity, and even though those events took place in a parallel timeline and had no bearing on the world they returned to, the Sages’ personalities at the beginning of TotK are because of their experiences during the Calamity and the bonds they made with the Champions.