Yoimiya can still produce energy even after infusion expiry as long as the icd is off CD and the infused normal attack string arrow lands - Steph#3614
Kindling Arrows
Yoimiya's Kindling Arrows last around 2.5 seconds, don't drop off like regular arrows, and have auto lock aiming at a semi wide range. - xf3#3123
Yoimiya's Kindling Arrows can trigger a second overload if shot far away enough, because Kindling Arrows travel long enough to bypass the 0.5s ICD of overload - Bobrokrot#0111
Yoimiya can have all three Kindling Arrows up after Niwabi Fire Dance ends, so long as the required charging time is met. - nat#4502
Yoimiya can consistently trigger fall damage utilizing overload reactions. - Bobrokrot#0111
You have to trigger all 3 overloads across her NA string to do this, otherwise she can miss the target. Results may vary for other electro applicators.
Yoimiya's auto-aim range for her normals is around 6 tiles (~15.3 meters) - nat#4502
Kindling Arrows can home in on different targets. - Mcpie#8672
Kindling Arrows have a limited range. - Mcpie#8672
Kindling Arrow tracking is curved making it possible to orbit around targets. - Ravantier#4984
Findings:
Kindling Arrows are affected by Amos' Bow's passive, and it is very easy for Kindling Arrows to gain all 5 stacks because of how slowly they move.
Finding:
Yoimiya's blazing arrows snapshot the damage bonus from her skill.
Evidence:
Although Yoimiya's skill ends when she swaps off field, her blazing arrow damage remains the same whether you swap off before it hits an enemy or stay on field.
In this video, you can see that Yoimiya's N1 did the same damage when I swapped and when I didn't.
We can show that Yoimiya's skill ends as soon as you swap off because blazing arrows that hit after you swap off cannot activate her A1 passive.
In this video, Yoimiya's Pyro DMG Bonus didn't increase, even though her infused N1 hit, because she was off field.
Significance:
Better understanding of snapshotting - Even though Yoimiya's normal damage bonus from her skill is multiplicative and doesn't show up in her "Character Details" page, her arrows still snapshot it.
Burst follows standard ICD (3-hit/2.5s) - ProfHugo#6478
The initial hit of Yoimiya's Burst is an arrow, and can miss. - Aluminum#5462
Yoimiya's burst elevates her character position. - Ori#5463
Ascension Mechanics
A1: Tricks of the Trouble-Maker
Yoimiya's A1 passive can last up to 3s after E expires. - Mcpie#8672
Stacks gained from Yoimiya's A1 do not have independent durations, each Normal Attack hit will refresh the duration of all stacks to 3s. - Mcpie#8672 and nat#4502
Viridescent Hunt's passive does not affect Yoimiya's A1. - Mcpie#8672
Gaining stacks will cause the orbitting sparks from Niwabi Fire-Dance to increase in brightness. - nat#4502
Synergies/Interactions
Niwabi Fire-Dance's Blazing Arrow and Yun Jin's Cliffbreaker's Banner
Yoimiya's Niwabi Fire-Dance's Blazing Arrow DMG increase does not increase Yun Jin's Cliffbreaker's Banner bonus. - Sheet - NZPIEFACE#8439
Fluff
Yoimiya is also one of the few characters whom NPC will cheer for when using elemental skill. - itskhoi#0013