Berries
Berries are Pokémon consumables that that can be held in-battle.
Berries share functional identicalities to commonly used Pokémon supplements, such as potions and ailment curatives; one of the more salient differentiators from them is they are auto-consumable by its holding Pokémon in-battle, meaning that the Pokémon will automatically use it when the conditional thresholds are met and thus saves you from using your turn in-battle to select an item to fulfill that function.
The available berries in Pokémon Revolution Online can be compartmentalized into five agential categories: restorative berries, curative berries, EV-reductive berries, damage reductive berries, and in-battle stat modifying berries.
Available berries
Restoratives
Restoratives will replenish depleted HP or PP points for the consumptive Pokémon.
| Berry | Tree | Function | |
|---|---|---|---|
 | Oran Berry |  | Restores the consumer's HP by 10 points |
 | Leppa Berry |  | Restores the consumer's PP by a static amount in 10 points |
 | Sitrus Berry |  | Restores the consumer's HP by 25% of its maximal amount |
Curatives
Curatives will expunge Status ailments that the consumptive Pokémon might be afflicted by. If held in-battle, the holding Pokémon will automatically consume it after the status ailment is onset.
| Berry | Tree | Function | |
|---|---|---|---|
 | Cheri Berry |  | Cures the consumer of paralysis |
 | Pecha Berry |  | Cures the consumer of poison |
 | Rawst Berry |  | Cures burned consumers |
 | Aspear Berry |  | Defreezes frozen consumers |
 | Persim Berry |  | Cures the consumer of confusion |
 | Chesto Berry |  | Wakes up the consumer if they are asleep |
 | Lum Berry |  | A wildcard berry that will cure any status ailment that the consumer may be afflicted by |
EV-reducers
EV-reductive berries will reduce the consumptive Pokémon's EVs for the corresponding stat by 10 points. As a secondary effect, they will also enhance your Pokémon's happiness points.
They can be looted from any Headbutt-able tree, bought in the Goldenrod City's Flower Shop after defeating The Pumpkin King in Lavender Town Graveyard, and harvested from some berry-tree allotments. Additionally, they can be traded for from other players.
These are instrumental for the continuity of EV-training, since only up to 252 Effort Values can be apportioned to each stat with a cumulative cap of 510; as such, they let you winnow out eventually unwanted Effort Value points for a stat. With a combination an intake these berries and retraining your Pokémon's EVs, which are recalculated on an after-battle basis in PRO, you can reapportion your Pokémon's EV spread.
| Berry | Tree | Function | |
|---|---|---|---|
 | Pomeg Berry |  | Reduces the consumptive Pokémon's HP EVs |
 | Kelpsy Berry |  | Reduces the consumptive Pokémon's Attack EVs |
 | Qualot Berry |  | Reduces the consumptive Pokémon's Defense EVs |
 | Hondew Berry |  | Reduces the consumptive Pokémon's Special Attack EVs |
 | Grepa Berry |  | Reduces the consumptive Pokémon's Special Defense EVs |
 | Tamato Berry |  | Reduces the consumptive Pokémon's Speed EVs |
Damage Reductors
These can be obtained from the Berry Stumps in Love Island and Pinkan Island.
| Berry | Tree | Function | |
|---|---|---|---|
 | Babiri Berry | File:Babiri Berry Tree.png | Reduces damage from one super effective Steel type attack |
 | Charti Berry | File:Charti Berry Tree.png | Reduces damage from one super effective Rock type attack |
 | Chilan Berry | File:Chilan Berry Tree.png | Reduces damage from one Normal type attack. |
 | Chople Berry | File:Chople Berry Tree.png | Reduces damage from one super effective Fighting type attack |
 | Coba Berry | File:Coba Berry Tree.png | Reduces damage from one super effective Flying type attack |
 | Colbur Berry | File:Colbur Berry Tree.png | Reduces damage from one super effective Dark type attack |
 | Haban Berry | File:Haban Berry Tree.png | Reduces damage from one super effective Dragon type attack |
 | Kasib Berry | File:Kasib Berry Tree.png | Reduces damage from one super effective Ghost type attack |
 | Kebia Berry | File:Kebia Berry Tree.png | Reduces damage from one super effective Poison type attack |
 | Occa Berry | File:Occa Berry Tree.png | Reduces damage from one super effective Fire type attack |
 | Passho Berry | File:Passho Berry Tree.png | Reduces damage from one super effective Water type attack |
 | Payapa Berry | File:Payapa Berry Tree.png | Reduces damage from one super effective Psychic type attack |
 | Rindo Berry | File:Rindo Berry Tree.png | Reduces damage from one super effective Grass type attack |
 | Roseli Berry | File:Roseli Berry Tree.png | Reduces damage from one super effective Fairy type attack |
 | Shuca Berry | File:Shuca Berry Tree.png | Reduces damage from one super effective Ground type attack |
 | Tanga Berry | File:Tanga Berry Tree.png | Reduces damage from one super effective Bug type attack |
 | Wacan Berry | File:Wacan Berry Tree.png | Reduces damage from one super effective Electric type attack |
 | Yache Berry | File:Yache Berry Tree.png | Reduces damage from one super effective Ice type attack |
In-Battle Stat Modifiers
These can be obtained from the Headbuttable Trees.
| Berry | Tree | Function | |
|---|---|---|---|
 | Apicot Berry | File:Apicot Berry Tree.png | Raises Special Defense by 1 stage when the users HP is at 1/4 of its maximum HP or lower |
 | Ganlon Berry | File:Ganlon Berry Tree.png | Raises Defense by 1 stage when the users HP is at 1/4 of its maximum HP or lower |
 | Kee Berry | File:Kee Berry Tree.png | Raises Defense by 1 stage if the user is hit by a physical attack |
 | Lansat Berry | File:Lansat Berry Tree.png | Raises Critical Hit ratio by 2 stages when the users HP is at 1/4 of its maximum HP or lower |
 | Liechi Berry | File:Liechi Berry Tree.png | Raises Attack by 1 stage if the users HP is at 1/4 of its maximum HP or lower |
 | Maranga Berry | File:Maranga Berry Tree.png | Raises Special Defense by 1 stage when the user is hit by a special attack |
 | Micle Berry | File:Micle Berry Tree.png | Raises Accuracy by 20% when the users HP is at 1/4 of its maximum HP or lower |
 | Petaya Berry | File:Petaya Berry Tree.png | Raises Special Attack by 1 stage when the users HP is at 1/4 of its maximum HP or lower |
 | Salac Berry | File:Salac Berry Tree.png | Raises Speed by 1 stage when the users HP is at 1/4 of its maximum HP or lower |
 | Starf Berry | File:Starf Berry Tree.png | Raises a random stat by 2 stages when the users HP is at 1/4 of its maximum HP or lower |
Pinch berries
| Berry | Tree | Function | |
|---|---|---|---|
 | Aguav Berry | File:Aguav Berry Tree.png | Restores 50% of the users total HP if the users HP is at 25% or less; confuses users with a -SPDEF Nature |
 | Custap Berry | File:Custap Berry Tree.png | Allows the users next attack to go first in its priority bracket if the users HP is at 25% or less |
 | Enigma Berry | File:Enigma Berry Tree.png | Restores 25% of the users total HP if it is hit by a super effective attack |
 | Figy Berry | File:Figy Berry Tree.png | Restores 50% of the users total HP if the users HP is at 25% or less; confuses users with a -ATK Nature |
 | Iapapa Berry | File:Iapapa Berry Tree.png | Restores 50% of the users total HP if the users HP is at 25% or less; confuses users with a -DEF Nature |
 | Jaboca Berry | File:Jaboca Berry Tree.png | If the user is hit by a physical attack, the attacker loses 12.5% of their total HP |
 | Mago Berry | File:Mago Berry Tree.png | Restores 50% of the users total HP if the users HP is at 25% or less; confuses users with a -SPEED Nature |
 | Rowap Berry | File:Rowap Berry Tree.png | If the user is hit by a special move, the attacker loses 12.5% of their total HP |
 | Wiki Berry | File:Wiki Berry Tree.png | Restores 50% of the users total HP if the users HP is at 25% or less; confuses users with a -SPATK Nature |
Obtainability
Berry trees
Berries are principally obtained by harvesting them from berry trees, which can be found in most tillage-viable areas—namely routes and forests, wherein most berry-tree allotments can be found.
Berry trees are monoproductional, meaning that they will return the exact-same berry archetype each time it grows. Most berry trees will regrow after three real-world days have elapsed; the only outlier to that is the EV-berry trees, which regrow after 4 days.
EV Reduction Berry trees
There are several locations where you can find EV Reduction berries out in the open, such as:
- Viridian Maze where you can find all 6 of these berries
- Route 115 where you can find Kelpsy, Tamato and Pomeg berries (Attack, Speed, HP).
- Petalburg Maze where you can find all 6 of these berries.
- Route 212 North where you can find Qualot and Hondew berries (Defence, Sp. Attack).
- Route 218 where you can find Grepa and Qualot berries (Sp. Defence, Defence).
- Route 224 where you can find Grepa berries (Sp. Defence).
- Route 228 where you can find Grepa and Pomeg berries (Sp. Defence, HP).
Headbutt Trees
Headbutting trees will have a chance of dropping berries.
Berry shops
Upon defeating the Pumpkin King boss in Lavender Town Graveyard, a berry-vendor will be made accessible in Goldenrod City Flower Shop. He will sell all EV-reductive berries for 
3,000 apiece, thereby providing the most prolific avenue of obtaining them for those that are affluent enough to expend the requisite Pokédollars for them.
Extra-organic usages
Item Buyer
All non-EV-reductive berries can be sold to the item-buyers that exist on the first floor of all Department Stores for 25 apiece, thereby providing a more marginal method of moneymaking for those that have plentifully collected berries.
Moo Moo Farm
Cornn Berries, which can be held by wild Meowth on Route 39, are solely used as a quest item for the Moo Moo Farm (quest).