Requested by IceeGlace
If Tallstar stayed with Jake, he probably would've moved into Jake's house as a kittypet. He wouldn't have become leader, and would still be called Talltail.
Jake may not have become mates with Quince or Nutmeg, so Firestar or Scourge wouldn't have been born. Which means Tigerstar would have taken over ThunderClan and possibly the whole forest.
Shrewclaw might have survived the ShadowClan fight, so he might've become leader of WindClan. He would've probably chosen his mate, Ryestalk, as deputy. So Ryestalk would most likely be leader by this time. When she died, anyone could've been made leader. Maybe one of her kits, Mudclaw or Tornear. Mudclaw wouldn't have been killed by that tree since he wasn't fighting with Onestar for leadership.
Tigerstar probably would've lost his last life now, and he would've made Darkstripe the deputy. Or maybe Longtail or Dustpelt. So one of them would be leader now.
Cloudtail, Squirrelflight, Leafpool, Alderheart or Sparkpelt or any of their kits wouldn't be alive, since Firestar wasn't born. So the Three wouldn't be alive, and the Dark Forest might have won the Great Battle, if the Great Battle actually occurred.
Sandstorm would've mated with Dustpelt. I don't know who Ferncloud would've mated with.
WindClan would probably be more hostile, since Tallstar was the one that usually kept the peace between WindClan and the other Clans. Shrewclaw wasn't the nicest cat, so he would probably have been like Mudclaw, starting fights with every Clan.
Now, in ThunderClan, Yellowfang wouldn't have come to ThunderClan, since it was Firestar who brought her there. Spottedleaf would've died, and ThunderClan wouldn't have had a medicine cat. Yellowfang probably would've died of starvation, since Firestar wasn't there to find her. And if she was found, it could've easily been Tigerstar, who'd have killed her on the spot.
Cinderpelt would've still injured her leg. She would've still become a medicine cat. She would've been trained by one of the other Clan's medicine cats. Probably by Mudfur or Barkface.
Greystripe would've still mated with Silverstream, and she would've still died. Greystripe would've gone to RiverClan, but he probably wouldn't return, since Firestar was the one who persuaded him to come back.
Ravenpaw would've been killed by Tigerstar. Firestar wouldn't be there to being him to live in Barley's barn.
Barley might not have been born, since BloodClan wouldn't exist without Scourge. If Barley was born, he wouldn't live on the barn. He'd probably be a rogue.
When they went to the lake territory, it was Firestar who led them. And Squirrelflight went to the sun-drown place. They wouldn't exist. Brambeclaw would've still gone there. Maybe Brambeclaw would be evil like his father, since Tigerstar would be leader of ThunderClan. Tawnypelt might've stayed there, too.
Since the Three wouldn't be born, Cinderpelt would have to find a new medicine cat apprentice instead of Jayfeather. Maybe Brightheart, since she wouldn't mate with Cloudtail since he wouldn't exist. Brightheart wouldn't have lost half her face, since Tigerstar would've killed Bluestar earlier on. Swiftpaw would still be living.
Ashfur wouldn't be evil, since he wouldn't have any reason to be evil. Squirrelflight and the Three wouldn't be born.
Sasha might have not mated with Tigerstar, since he wouldn't be hanging around ShadowClan. Hawkfrost or Mothwing wouldn't exist. But maybe Willowshine would still become a medicine cat, if Mudfur lived long enough to train her.
If he didn't, then I don't know. Willowshine would have to be trained by another medicine cat, like Cinderpelt.
The Clans might have not made it to the lake without Firestar. They might have simply all died. Maybe Tigerstar led them there.
The Dark Forest wouldn't have grown so strong without Tigerstar. So Omen of the Stars wouldn't have happened. Dovewing and Ivypool wouldn't be born anyway, since Whitewing is related to Cloudtail.
Twigbranch and Violetshine would've probably just died as kits. Alderheart wouldn't be there to find them.
SkyClan wouldn't exist, without Firestar to go with Sandstorm to rebuild it. So Darktail wouldn't have killed Sharpclaw.
Sharpclaw would still be a rogue, as would Leafstar, Patchfoot, Clovertail, and most of the SkyClan cats. Rainfur wouldn't have died, and Petalnose would still be trapped with her Twoleg. Sparrowpelt and Cherrytail would still be kittypets, too.
I can't think of anything else, but basically, if Tallstar had stayed with Jake instead of going back to WindClan, all the Clans would pretty much be doomed.
So Tallstar is actually a pretty important cat!
YOU ARE READING
Warrior Cats AU Oneshots
FanfictionThis is the book where I write oneshots such as 'What if Spottedleaf didn't die?' or 'What if Ravenpae never left ThunderClan?' I just came up with the idea to make this book ages ago and now I finally made it lol