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Omastar
Rock 
Water
No.139
Max Move:
Max QuakeMax GeyserMax Rockfall*
Max QuakeMax GeyserMax Rockfall*Overall Rating
S
⚔️ Attack Rating
S
🛡️ Tank Rating
S
Evolutions
Evaluation Criteria (rank = best rank across all bosses)
Attack Rating: Ranked by Dynamax attack damage.
Tank Rating: Ranked by durability (HP/Defense). No 0.5s fast move: -1 tier.
Overall Rating: Takes the higher of Attack Rating and Tank Rating. Displayed in 6 tiers from S+ to D.
Tank Rating: Ranked by durability (HP/Defense). No 0.5s fast move: -1 tier.
Overall Rating: Takes the higher of Attack Rating and Tank Rating. Displayed in 6 tiers from S+ to D.
Attack Rating
| S+ | Rank 1 |
| S | Rank 2-3 |
| A | Rank 4-6 |
| B | Rank 7-15 |
| C | Rank 16-40 |
| D | Rank 41+ |
Tank Rating (Durability)
| S+ | Rank 1 |
| S | Rank 2-3 |
| A | Rank 4-6 |
| B | Rank 7-15 |
| C | Rank 16-40 |
| D | Rank 41+ |
⚡ No 0.5s Move → -1 Tier
Overall Rating: Takes the higher of Attack Rating and Tank Rating (S+ > S > A > B > C > D)
Omastar's Top 5 Effective Bosses
⚔️ Top 5 Effective Bosses (Attack)
🛡️ Top 5 Effective Bosses (Tank)
Omastar's Best Bosses — Attack Ranking
Omastar is most effective against these bosses, ranked by Dynamax move damage.
| Rank | Boss | |
|---|---|---|
| 2 |  | Gigantamax Butterfree |
| 3 |  | Gigantamax Charizard |
| 3 |  | Articuno |
| 3 |  | Moltres |
| 3 |  | Ho-Oh |
| 6 |  | Gigantamax Toxtricity |
| 7 |  | Zapdos |
| 12 |  | Entei |
| 12 |  | Gigantamax Cinderace |
| 15 |  | Gigantamax Pikachu |
Omastar's Best Bosses — Tank Ranking
Omastar survives longest against these bosses, ranked by durability index.
| Rank | Boss | |
|---|---|---|
| 3 | | Moltres |
| 3 | | Gigantamax Charizard |
| 14 | | Articuno |
| 14 | | Entei |
| 16 |  | Eternatus Eternamax |
| 24 |  | Lugia |
| 25 |  | Gigantamax Lapras |
| 26 |  | Gigantamax Blastoise |
| 36 |  | Gigantamax Meowth |
| 38 | | Gigantamax Cinderace |
Omastar's Ranking vs Each Boss
| Boss Name | ⚔️ Attack Rank | 🛡️ Tank Rank | |
|---|---|---|---|
| Gigantamax Butterfree | 2 | 49 |
| Gigantamax Charizard | 3 | 3 |
| Moltres | 3 | 3 |
| Articuno | 3 | 14 |
| Ho-Oh | 3 | 55 |
| Gigantamax Toxtricity | 6 | 82 |
| Zapdos | 7 | 65 |
| Entei | 12 | 14 |
| Gigantamax Cinderace | 12 | 38 |
 | Raikou | 15 | 79 |
| Gigantamax Pikachu | 15 | 81 |
| Lugia | 18 | 24 |
| Gigantamax Lapras | 23 | 25 |
 | Regirock | 27 | 75 |
 | Regice | 28 | 68 |
 | Gigantamax Garbodor | 29 | 49 |
| Eternatus Eternamax | 32 | 16 |
 | Gigantamax Gengar | 34 | 47 |
| Gigantamax Blastoise | 51 | 26 |
 | Gigantamax Kingler | 51 | 43 |
 | Suicune | 51 | 43 |
 | Gigantamax Inteleon | 51 | 45 |
 | Latias | 51 | 63 |
 | Latios | 51 | 90 |
 | Gigantamax Grimmsnarl | 56 | 52 |
 | Gigantamax Venusaur | 62 | 103 |
| Gigantamax Meowth | 64 | 36 |
 | Gigantamax Snorlax | 64 | 44 |
 | Gigantamax Rillaboom | 65 | 113 |
 | Gigantamax Machamp | 69 | 75 |
⚔️ Available Max Moves
| Move Name | Type | Move | Power (LV1/LV2/LV3) |
|---|---|---|---|
| Max Quake | Ground | ⚡ Mud Shot | 250 / 300 / 350 |
| Max Geyser | Water | ⚡ Water Gun | 250 / 300 / 350 |
| Max Rockfall* | Rock | Rock Throw* | 250 / 300 / 350 |
* Elite TM required
⚡ 0.5s Move
Fast Moves
| Move Name | Type | Activation Time |
|---|---|---|
| Mud Shot ⚡ 0.5s Move | Ground | 0.5s |
| Water Gun ⚡ 0.5s Move | Water | 0.5s |
| Rock Throw* | Rock | 1.0s |
Charge Moves
| Move Name | Type | Gauge | Power |
|---|---|---|---|
| Hydro Pump | Water | 135 | |
| Rock Blast | Rock | 50 | |
| Ancient Power | Rock | 70 | |
| Rock Slide* | Rock | 75 |