List of Pokémon by Rarity Tier

All rarity-tier values of wild-encounterable Pokémon in Pokémon Revolution Online are documented here. This applies strictly to grass- and water-encounterable Pokémon; any extraneous sources to that, such as Headbutt-encounterable Pokémon and diggable encounters, are inapplicable to this list, as they operate on completely different spawn pools and have not been vouchsafed to us in that regard.

Rarity-scale tiers

Initially there were ten rarity tiers, but they were reclassified for granular simplicity. As of the June 2021 mergence, there are only four tiers total.

Tier	Name
1	Common
2	Uncommon
3	Rare
4	Unhuntable

Only the first-three tiers—common, uncommon, and rare—encompass wildly encountered Pokémon. Tier-4, unhuntable, Pokémon might be obtainable through the game's content (i.e., quests, daily activities, and bosses), but they aren't spawnable on any wild-Pokémon terrain, surfing, or fishing.

The exact spawn rates for each tier are unknown, and the staff does not intend to disclose them due to various reasons.

Pokémon Lists

All rarity-tier values are designated by the most-common one known of any Pokémon in any area; this means that if Poochyena, for example, were a 4-tier in 99 areas out of 100 but a 1-tier Pokémon in the last-remaining area, 1 would be its rarity-tier value listed. For area-specific data on a Pokémon's rarity, refer to the individual article for the Pokémon or area in question.