In Pokémon GO, raw Combat Power (CP) often lies to you, and trusting in-game appraisal stars without reading the underlying mechanics will drain your Stardust fast.
Visit Niantic Support’s official developer breakdown, Appraising Pokémon, to understand the mechanics. Afterward, use our dedicated Pokemon GO Player Services to accelerate your account’s progress.
This comprehensive Pokémon GO IV guide provides precise control over your inventory, whether you’re optimizing PvP stats or enhancing Raid DPS.
Understanding Individual Values (IVs) in Pokémon GO
Combat Power (CP) is just a surface-level term. Beneath each Pokemon’s CP lies a fixed hidden formula dictated by its species base stats combined with its Individual Values.
Individual Values (IVs) act as the genetic potential of a specific catch. Two Machamps at Level 30 will have completely different combat effectiveness if one possesses zero extra stats and the other boasts maximum values.
Three Core Stats: Attack, Defense, and Stamina (HP)
Every species in Pokémon GO utilizes three primary stat vectors:
- Attack: Influences how much damage your Fast and Charged Moves inflict per turn.
- Defense: Reduces the incoming damage taken from opponent attacks.
- Stamina (HP): Determines your total hit point pool and overall battlefield longevity.
Each of these three stats has an IV range from 0 to 15. When you catch a wild spawn, these integer bonuses are added directly to the species’ hidden base stats.
Base Stats vs. IVs: Why IVs Are Only Part of the Formula
Base stats carry the most weight. For example, a Mewtwo with a base Attack of 300 will have a total Attack of 300 if it has a 0 Attack IV, and 315 if it has a 15 Attack IV.
That is only a 5% difference in total performance.
For raids and casual play, selecting the right species is more important than perfect stats. There’s no need to worry about a 12 Attack legendary Pokemon if its base stats are already very high. Prioritize saving resources for the best species first.
How to Read the In-Game Appraisal System
Previously, assessing stat quality involved third-party overlay apps and manual calculations. Now, your Team Leader provides all the necessary information through a simple, integrated UI element.
Understanding the Pokémon GO appraisal system mechanics takes seconds once you know how the visual segments break down.
Breakdown of Appraisal Stars & Visual Bars (0* to 4*)
Opening the team leader appraisal menu displays three distinct red-and-orange progress bars split into three sub-segments. Each full segment represents 5 IV points, totaling 15 points per bar:
| Appraisal Rating | IV Sum Range | IV Percentage Range | Stat Allocation & Visual Indicator |
| 4 Stars | 45 Points | 100% | Perfect 15/15/15 stats (3 Bars Full + Red Badge) |
| 3 Stars | 37 – 44 Points | 82.2% – 97.8% | High-tier stat distribution (3 Pink/Orange Bars) |
| 2 Stars | 30 – 36 Points | 66.7% – 80.0% | Mid-tier stat distribution (2 Full Bars + Partial) |
| 1 Star | 23 – 29 Points | 51.1% – 64.4% | Low-tier stat distribution (1 Full Bar + Partial) |
| 0 Stars | 0 – 22 Points | 0.0% – 48.9% | Minimal stat distribution (Less than 1 Full Bar) |
What is a “Hundo” (15/15/15) vs. a “Nundo” (0/0/0)?
A Pokemon GO hundo represents a maxed-out 15/15/15 stat spread, awarding a unique pink 4-star Pokemon GO emblem. These are your primary targets for Master League PvP and top-tier Raid attackers.
Conversely, a “Nundo” features an absolute 0/0/0 stat line across all three bars.
Nundos are extraordinarily rare. Since weather boosts, raids, research tasks, and trades all require minimum IV thresholds, encountering a wild 0/0/0 spawn is statistically less likely than catching a Hundo. You can even keep these as trophy flexes.
The Shadow Pokémon Dilemma: To Purify or Not to Purify?
Catching a Team GO Rocket Shadow Pokemon presents one of the most punishing resource decisions in the game. Purifying adds two points (+2) to every individual stat bar and drops Power-Up costs by 20%.
It sounds like a no-brainer, right? This Pokemon GO IV guide will tell you otherwise.
The +20% Attack Multiplier vs. +2 Stat Increases
Shadow Pokémon get a consistent 20% Attack boost, but they also take 20% more damage. This damage increase depends entirely on the species’ base stats, overshadowing even the small improvements from purifying.
A 0/0/0 Shadow Mewtwo will out-damage a 15/15/15 Purified Mewtwo in every single Raid scenario. The raw damage output of the Shadow bonus bypasses standard IV math.
Never purify top-tier Shadow attackers to get a Hundo. You are trading raw DPS for empty aesthetic stars.
When You Should Purify (Mega Evolutions, Master League, Stardust Discounts)
Purification isn’t entirely useless. You should consider hitting that Purify button under three specific competitive circumstances:
| Scenario | Strategic Reason | Recommended Action |
| Mega Evolution Candidates | Shadow Pokémon cannot undergo Mega Evolution. | Purify if it hits 15/15/15 for a top-tier Mega (e.g., Tyranitar, Lucario). |
| Master League PvP | Uncapped Master League demands raw bulk and maximum stats to hit critical Breakpoints. | Purify if the bulk stats (+2 Def/HP) outperform the Shadow defense penalty. |
| Budget Power-Ups | Purified Pokémon require 10% less Candy and 20% less Stardust. | Purify mid-tier raid filler if you are short on resources. |
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When You Should NEVER Purify (Top Raid Attackers)
Never purify premier PvE attackers. If you possess [KW: shadow pokemon ivs] on meta-relevant monsters like Shadow Machamp, Shadow Metagross, Shadow Dragonite, or any Legendary Shadow, keep them in their dark form.
Purifying these removes their top-tier DPS potential permanently. You cannot re-shadow a Pokémon once you [KW: purify shadow pokemon].
PvP IVs Explained: Why 0/15/15 Beats 15/15/15 in CP-Capped Leagues.
Bringing a 15/15/15 3-star Pokémon into Great League or Ultra League usually results in a loss. These CP-limited formats favor Pokémon with low Attack and high Defense or Stamina stats.
It feels completely backward until you look at how the combat formula calculates CP.
Master League Exceptions: Why High IVs Rule Uncapped CP
Master League has zero CP caps. Without a ceiling penalizing high Attack stats, the optimal PvP IVs in Pokémon GO rules shift completely back to traditional max-IV targets.
In Master League, you want absolute 15/15/15 stats. Every extra point of HP and Attack allows you to win Mirror Matches via Charged Attack Priority (CMP) ties.
For deep statistical checks across custom league CP caps, test your inventory against third-party analytical tools like PvP IVs Rank Checker.
Essential Search Strings for Quick Inventory Cleanup
Manually reviewing hundreds of appraisals after a Community Day or Raid Hour can exhaust any player. Built-in search filters allow you to identify valuable stat spreads quickly.
Copy and paste these accurate search commands into your in-game search bar to quickly declutter your inventory.
Copy-Paste Filters for Hundos, PvP Candidates, and Transfer Fodder
| Purpose / Use Case | Search Filter String | Effect & Function |
| Find Perfect 100% IVs (Hundos) | 4* | Isolates all Pokemon with maxed IV stats (4 Stars / Red Badge). |
| Find 3-Star Keeps | 3* | Displays all high-tier Pokemon with IV totals between 82% and 98%. |
| Find PvP Candidates (GL / UL) | 0-1attack&3-4defense&3-4hp | Filters for optimal PvP stat distributions (Low Attack, High Defense, High HP). |
| Find Transfer Fodder | 0*,1*&!shiny&!legendary&!mythical&!shadow | Highlights low-IV trash while excluding Shinies, Legendaries, Mythicals, and Shadows. |
| Isolate Maxed Stat Combinations | attack4&defense4 | Targets Pokemon with maxed Attack and Defense bars regardless of HP IV. |
Combine these strings with & (AND) or comma (OR) operators to build custom cleanup pipelines. Using 0-1attack&3-4defense&3-4hp instantly filters optimal Great League stat products without manual checking.
Final Thoughts
Mastering IVs changes how you use Stardust, helping you create effective teams for both PvE Raids and CP-limited PvP leagues. Before transferring your next catches, check your search strings to avoid discarding a top-tier PvP stat product.
If you want to bypass the grinding phase and start battling with high-IV monsters immediately, gear up with our premier Pokemon Catches Bundle and Pokemon GO Raids Assist.
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Frequently Asked Questions (FAQ)
Can you change or reroll IVs in Pokémon GO?
No. IVs are permanently locked when caught, but trading with a friend will reset their stats according to Friendship levels. Becoming Lucky Friends ensures traded Pokémon have a minimum IV of 12/12/12.
Do IVs matter for casual players or Raid battles?
IVs account for only about 5% to 10% of overall performance, so base stats and movesets are much more important for casual raiding. Perfect IVs mainly determine success in high-level PvP CMP ties or challenging short-handed raids.
What is Hyper Training, and is it in Pokémon GO?
Hyper Training is a feature from main-series Pokémon games that boosts base IVs, but it is not available in Pokémon GO. Once a Pokémon is caught, its stats cannot be improved organically except for the +2 bonus gained through Purification.
