Dude how do you get amber so much-- people are saying its super rare to get the free 3 (amber kaeya lisa) from the standard)
But anyways, if you've done the thing it should unlock a free 5* (standard 5*) selector of diluc (pyro/claymore) jean (anemo/sword) mona (hydro/catalyst) keqing (electro/sword) dehya (pyro/claymore or sword) tighnari (dendro/bow) qiqi (cryo/sword) and mizuki (anemo/catalyst), while you could get diluc or dehya i would recommend qiqi or mizuki for stellar cuz its meta (more likely qiqi)
However, an old character that has stayed relatively meta is Xiangling (pyro/polearm) and she's a 4* you can get from a quest
(plus you can get collei (dendro bow) and lynette (anemo sword) (both 4*) from doing spiral abyss)
Explanation in five year old: the seven Archons (elemental gods) we've met over the years team up to fight Celestia/Heavenly Principles/Phanes (big boss powerful god that presides over the world) cuz Ronova (shade of death/grim reaper) dumped the Eitr (Embryonic-Ichoric-Telluric-Rudiment f**king thing with the big ass name) into the Celestial Nail/Nail of Retribution (one of many big crystal pillars that HP dumps on civilizations that are either abyss corrupted or they're just pissed with) above Snezhnaya (cryo nation) which caused the giant black stars to appear above said Nails, and it seemed to be trying to trigger the Holy Soil which will reset Teyvat (genshin world) to its original state of the Light Realm (where dragons vishaps lived, basically holy soil is toxic to humans but good to dragons/vishaps) and the Anemo and Geo Archons quoted themselves from six years ago ("what does freedom mean" and "the final contract" lines) so this is f**king hype
Short version: The gods team up to fight big man god whos trying to reset the world + Eitr activating holy soil and holy soil being activated = we kinda f**ked.
