The Koreans have started a tier list of most of the astromons available in the game. This list is posted by the Koreans here. You can see the original document here. Join the Reddit discussion here about the monsters.
The Ranking System goes like this:
- S – Excellent
- A – Great
- B – Average
- C – Bad
| Name | Level | Description | Effect% |
|---|---|---|---|
| 3 | Minor Boost to Crit | 2 | |
| 4 | Moderate Boost to Crit | 5 | |
| One-Hit Wonder | 5 | Major Boost to Crit | 7 |
| 3 | Minor Boost to HP | 5 | |
| 4 | Moderate Boost to HP | 7 | |
| HP Ultrabooster | 5 | Major Boost to HP | 12 |
| Lupine Lunge | 3 | Minor Boost to Attack | 5 |
| Mighty Lupine Lunge | 4 | Moderate Boost to Attack | 7 |
| Ancient Lupine Lunge | 5 | Major Boost to Attack | 12 |
| Dragon’s Blessing | 3 | Minor Boost to Defense | 5 |
| Mighty Dragon’s Blessing | 4 | Moderate Boost to Defense | 7 |
| Ancient Dragon’s Blessing | 5 | Major Boost to Defense | 12 |
| Arcane Tracery | 3 | Minor Boost to S-Attack | 5 |
| Mighty Arcane Tracery | 4 | Moderate Boost to S-Attack | 7 |
| Ancient Arcane Tracery | 5 | Major Boost to S-Attack | 12 |
| Protective Array | 3 | Minor Boost to S-Defense | 5 |
| Mighty Protective Array | 4 | Moderate Boost to S-Defense | 7 |
| Ancient Protective Array | 5 | Major Boost to S-Defense | 12 |
| Speed Star Alpha | 3 | Minor Boost to Speed | 5 |
| 4 | Moderate Boost to Speed | 7 | |
| Speed Star Gamma | 5 | Major Boost to Speed | 12 |
| 3 | Minor Boost to Accuracy | 2 | |
| 4 | Moderate Boost to Accuracy | 5 | |
| Ultra Radar Patch | 5 | Major Boost to Accuracy | 10 |
| 5 | Boost ?? to Party members of the same Type as Leader | 15 | |
| 4 | Boost HP to Party members of the same Type as Leader | 15 | |
| 4 | Boost Attack to Party members of the same Type as Leader | 15 | |
| 4 | Boost Defense to Party members of the same Type as Leader | 15 | |
| 4 | Boost S-Attack to Party members of the same Type as Leader | 15 | |
| 4 | Boost S-Defense to Party members of the same Type as Leader | 15 | |
| 4 | Boost Speed to Party members of the same Type as Leader | 15 | |
| 4 | Boost Accuracy to Party members of the same Type as Leader | 13 | |
| 4 | Boost Crit to Party members of the same Type as Leader | 10 | |
| 4 | Increase Null resistance | 0 | |
| 4 | Increase Fire resistance | 0 | |
| 4 | Increase Water ResistanceIncrease Thunder Resistance | 0 | |
| 4 | Increase Nature Resistance | 0 | |
| 4 | Increase Light Resistance | 0 | |
| 4 | Increase Darkness Resistance | 0 | |
| 4 | Increase resistance to Poison | 0 | |
| 4 | Increase resistance to Confusion | 0 | |
| 4 | Increase resistance to Paralyze | 0 | |
| 4 | Increase resistance to Sleep | 0 | |
| 4 | Increase resistance to Stun | 0 | |
| 4 | Increase resistance to Skill-Seal | 0 | |
| 4 | Increase resistance to Instant Death | 0 | |
| 4 | 25 | ||
| 4 | Attack up when HP at 100% | 25 | |
| 4 | Defense up when HP at 100% | 25 | |
| 4 | S-Attack up when HP at 100% | 25 | |
| 4 | S-Defense up when HP at 100% | 25 | |
| 4 | Speed up when HP at 100% | 25 | |
| 4 | Accuracy up when HP at 100% | 15 | |
| 4 | Crit up when HP at 100% | 25 | |
| 4 | 30 | ||
| 4 | Attack up when HP at 20% or less | 30 | |
| 4 | Defense up when HP at 20% or less | 30 | |
| 4 | S-Attack up when HP at 20% or less | 30 | |
| 4 | S-Defense up when HP at 20% or less | 30 | |
| 4 | Speed up when HP at 20% or less | 30 | |
| 4 | Accuracy up when HP at 20% or less | 20 | |
| 4 | Crit up when HP at 20% or less | 30 |
| Level Cap | Tier | Character Name | Character Icon | Character Role |
|---|---|---|---|---|
| 60 | SS | Vaan |  | HP Attacker |
| 60 | SS | Squall |  | BRV Attacker |
| 60 | SS | Laguna |  | Flexible+Debuffer |
| 60 | SS | Cloud |  | Overall Good DPS |
| 60 | SS | Terra |  | HP Attacker |
| 60 | SS | Yuna |  | Brave Battery |
| 60 | SS | Serah |  | Brave Battery+Buffer |
| 60 | S | Krile |  | Brave Battery |
| 60 | S | Hope |  | Brave Battery |
| 60 | S | Snow |  | Tank |
| 60 | S | Ramza |  | Buffer |
| 50 | S | Lilisette |  | Brave Battery+Debuffer+Buffer |
| 60 | S | Zidane |  | SPD Warmonger |
| 60 | S | Prishe |  | Flexible Attacker (Physical+Magical) |
| 60 | S | Edgar |  | Debuffer [Apparently] |
| 60 | S | Warrior of Light |  | Tank |
| 60 | A | Bartz |  | BRV Attacker |
| 60 | A | Shantotto |  | Debuffer |
| 60 | A | Firion |  | Vampiric Damage Dealer |
| 60 | A | Lightning |  | Self-Buffing DPS |
| 60 | A | Ace |  | Self-Buffing DPS |
| 60 | A | Onion Knight |  | Flexible DPS (Physical+Magical) |
| 60 | A | Rem |  | Healing/Support |
| 60 | A | Tidus |  | SPD Warmonger |
| 60 | A | Vivi |  | Good Magical DPS |
| 60 | A | Cecil |  | Good AoE BRV Attacker |
| 60 | A | Alisaie | Multi-Element DPS | |
| 60 | A | Thancred |  | Poison Specialist |
| 50 | B | Lenna |  | Buffer+Healer |
| 60 | B | Y'Shtola |  | Magic BRV Attacker |
| 50 | B | Layle |  | Knock Back Specialist |
| 50 | B | Sephiroth |  | BRV Attacker |
| 50 | B | Zack | BRV Scrapping Tank | |
| 50 | B | Cater |  | BRV attacker |
| 50 | B | Yuri |  | General Good Dps |
| 50 | B | Kefka |  | Debuffer |
| 50 | B | Maria |  | Healer |
| 50 | B | Yang |  | AoE HP Attacker |
| 50 | B | Kuja |  | AoE DPS |
| 50 | B | Eiko |  | Healer+BRV Battery |
| 50 | B | Seifer |  | BRV Attacker |
| 50 | B | Jecht |  | General Good DPS |
| 50 | B | King |  | Ranged DPS |
| 50 | B | Cid |  | Self-Buffing+Healing |
| 50 | B | Rydia | Magical DPS | |
| 50 | C | Seymour |  | Debuffer |
| 50 | C | Vincent |  | BRV Attacker |
| 50 | C | Quistis |  | Debuffer |
| 50 | C | Faris |  | Debuffer |
| 50 | C | Edge |  | Tank |
| 50 | C | Setzer |  | Debuffer |
| 50 | C | Tifa |  | BRV Attacker |
| 50 | C | Wakka |  | Random Self-Buffer |
| 50 | C | Raijin |  | Thunder DPS |
| 50 | C | Kain |  | Generally Good DPS |
| 50 | C | Papalymo |  | Magical DPS |
| 50 | C | Ashe |  | Debuffer |
| 50 | D | Garnet |  | Magical DPS |
| 50 | D | Shadow |  | SPD Warmonger |
| 50 | D | Zell |  | AoE Attacker |
| 50 | D | Galuf |  | Tank |
| 50 | D | Sabin |  | Generally Good DPS |
| 50 | D | Irvine |  | Ranged DPS |
| 50 | D | Yuffie |  | Brave Battery |
| 50 | D | Penelo |  | Buffer |
| 50 | D | Aerith |  | Healer+Brave Battery |
| 50 | E | Vanille |  | Debuffer |
| 50 | E | Cyan |  | Tank |
| 50 | E | Lion |  | BRV Attacker |
| 50 | E | Fuujin | Wind DPS | |
| 50 | E | Auron |  | Brave Attacker |
| 50 | E | Celes |  | Magic DPS Nullifier |
| 50 | E | Balthier |  | Buff Stealer DPS |
| 50 | E | Steiner |  | Anti Human DPS. |
| 50 | E | Yda |  | Poison DPS |
| 50 | E | Palom |  | Long-Term Battle Specialist |
| 50 | F | Sazh |  | Ranged DPS |
