Armored Core: Nine Breaker/Arena

The Arena is composed of 30 Ravens. In this Arena, before you are allowed to challenge the ranked Ravens, you will have to accumulate enough ranking points by clearing tests and defeating unranked contenders through random challenger search. Then you will have the Arena ladder unlocked in several batches. The ranked Ravens will also challenge you on occasion as you progress, allowing you a chance to fight them early before unlocking the Arena section they are placed at.

Rankings

Rank	Raven	Armored Core
1st	Etzam Nar	Proto Exus
2nd	Warlord	Goliath
3rd	First Star/Ubitai	Solar Nine/Kuyo Type 2
4th	Even Chance/Hinoto	Leaf/Hagakure
5th	Trance/Muse	Terpsichore
6th	Ten Ton/Manjimaru	Destroyer/Hakaio
7th	Wry/Lumiere	Ellis/Iris
8th	Ortlinde	Bernese/Veil Neige
9th	Starks	Subterfuge/Schwarznagel
10th	Fastidious/Diva	Lullaby-M
11th	Bull/Bulbul	C's Requiem
12th	Mr. Big	G-Blaze
13th	ABYSS	Blood Feud/Blood Dragon
14th	Center Fire	Living Shell
15th	Lucky/Good Luck	Star Flare/Star Attraction
16th	Half Moon/Khalaf al-Din	S-Fil/Sufir
17th	Balsa Mina	Gun Burst/Cannon Chika
18th	Ms. Mary	MMM
19th	Grave-P	Spider Crowe/Spider Claw
20th	Poco A Poco	Cachet/Crochet
21st	Alpha/Alpha Mile	Rising Sun
22nd	Rich Stitch	Tablet
23rd	Flyboy	Spitfire
24th	Jellybean	I-Wish
25th	Surge	Iron Horse
26th	OBORO	Haze/Kasumi Fudo Hei-gata
27th	Escalate/Red Flame Fang	Elf Fire/Will-o'-the-Wisp
28th	Kukulcan	Drone
29th	B-Billy	DB
30th	Nebra/Nebula	Cast-Off/Lupus