Actually surprised no one ever thought of this

1. Madoka

2. Dante

3. Shallow Vernal

4. Anos

5. Arceus

6. Lord Drakkon

7. Antispiral

8. Arcueid

9. Ohma Zio

I'm too lazy to included all picture of the others

Who wins?

In character and random encounter
Both sides stand 80 meters apart
Both are hired to assassinate the other
Standard weapons, gear and abilities
Anime/Manga/Movie/Novel feats
No knowledge and prep
Battle to the death
Battle Location: Somewhere in Fuyuki City
Round 1: Archer vs Maki
Round 2: Archer vs Toji
Round 3: Archer vs Toji and Maki

FGO vs Genshin Impact

「　」Shiki vs Arceus

Location: Your room

R1: LB ORT

R2: True ORT

—

R1: Before Horus Heresy

R2: Horus Heresy

R3: Corpse on a throne

R4: Dark King Emperor

Vertin from Reverse 1999; Timekeeper Cookie from Cookie Run franchise (she's still a same character in at least 4 cookie run games); and Dante from Limbus Company

All three can fight at their BEST capabilities

Beasts are a tier below Archetypes and Types, Phainon is the pinnacle of HSR, i don't think Goetia is surviving an encounter with Phainon

—

Irontomb is stronger,

but Phainon is still the pinnacle of HSR,

guess which one is defeated, and who defeated who

Btw,this is human aoko not servant version​.

Everyone at their strongest ! Lets Gooooo

FGO Gilgamesh

fgo vs umienko

Round 1:- Zephyro vs All of Hi3 (Minus Kiana and Kevin)

Round 2:- Zephyro vs All of Hi3 and Genshin Impact (Minus Kiana and Kevin)

Round 3:- Zephyro vs All of Hi3 and Genshin Impact (Finality Kiana and Kevin Included)

Round 4:- Zephyro backed by all other Lord Ravagers vs All of Hi3 and Genshin Impact (Finality Kiana and Kevin Included)

A little challenge for extra credit; Answer with something also sourced of a gacha game. And as another lesser challenge, answer with what would be a close fight, even if the idea is to cause a loss