IV items and the pity system

IVs are a Pokémon’s natural potential, from 0 to 31 in each stat (186 in total). In most Pokémon games they never change, but PBO has three items that change them. This page covers each item, the limits and the pity system that makes repeated IV Randomizers worth it.

The IVs tab shows each IV, the IV Potions used against the Pokémon's limit and how many IV Randomizers it has had.

At a glance

• Items: IV Randomizer rolls six new IVs, IV Potion adds 1, IV Toxin removes 1.
• Pity: the more Randomizers a Pokémon has had, the higher the lowest IV a new roll can give.
• Limit: each Pokémon takes a limited number of IV Potions, set by its rarity and higher for shinies.
• Order: finish randomizing first, use IV Potions last.

For what IVs are, see Stats, IVs, EVs and natures.

The three IV items

Item	What it does	How to use it
IV Randomizer	Rolls six new IVs and lets you choose between the old and new set.	From your Bag, like a Revive: pick the Pokémon from your party.
IV Potion	Adds 1 IV to one stat, up to 31.	From the IVs tab of the Pokémon’s card: select the stat, press +1 IV and confirm. It cannot be used from the Bag.
IV Toxin	Removes 1 IV from one stat, down to 0. Useful for a deliberately low stat such as 0 Speed.	Also from the IVs tab, not the Bag: select the stat, press -1 IV and confirm.

IV Randomizer

1. Use it from your Bag. Find the IV Randomizer under medicine and use it.
2. Choose a Pokémon. Pick a Pokémon from your party.
3. Compare the rolls. The game shows the current IVs next to the new roll. Keep the old set or apply the new one.

The Randomizer is used up either way, and it counts towards the pity system even if you keep the old IVs.

If you apply the new IVs, the Pokémon’s IV Potion counter goes back to 0, so you can use its full allowance of IV Potions again. Potions already used are not refunded.

The IV Randomizer shows both sets of IVs and warns you before you throw away a near-perfect roll.

The game also protects good rolls:

• If the Pokémon already has near-perfect IVs and the new roll is worse, it asks you to confirm before overwriting them.
• If the new roll is near-perfect and better than what you have, it asks before you throw it away.

“Near-perfect” means close enough to 186 that the Pokémon’s full IV Potion allowance could finish the job.

The pity system

Every Pokémon remembers how many IV Randomizers have been used on it. The IVs tab shows it as “Randomizers used ×12”, for example. The more you have used, the higher the guaranteed minimum for every IV in each new roll:

Randomizers already used on the Pokémon	Every IV in the next roll is at least
0–9	0
10–19	5
20–29	10
30 or more	15
Shiny Pokémon, 0–39	15
Shiny Pokémon, 40 or more	20

The 11th Randomizer on a Pokémon is the first that cannot roll below 5, and the 31st is the first that cannot roll below 15. The count stays with the Pokémon, including through trades.

IV Potion limits

Each Pokémon can only take a limited number of IV Potions. The limit depends on its rarity and is higher for shiny Pokémon. The IVs tab shows how many you have used and how many are allowed, for example “2 / 10”.

Rarity	IV Potions allowed	Shiny
Common	3	14
Uncommon	3	14
Rare	5	15
Very Rare	7	16
Ultra Rare	10	18
Legendary	12	20

Order matters

Finish randomizing first and use IV Potions last: a potion spent before your final roll is lost.

Where to get them

Item	Source	Cost
IV Randomizer	Blaze Coin Shop	25 Blaze Coins
	Dynite Ore Shop	75 Dynite Ore
	Battle Tokens Shop	100 Battle Tokens
	Casino Token Store, Veilstone Game Corner	900 Casino Tokens
IV Potion	Blaze Coin Shop	20 Blaze Coins
	Casino Token Store, Veilstone Game Corner	200 Casino Tokens
	IV Scientists in Prof. Rowan’s Lab, Sandgem Town, or Extract IV Potion in the PC	Give up a Pokémon (see below)
IV Toxin	Crafting, level 8	2 each of Pomeg, Kelpsy, Qualot, Hondew, Grepa and Tamato Berry

IV Randomizers and IV Potions are also possible rewards from Dynamax Invasions. For shop locations and currencies, see Shops and currencies.

Turning Pokémon into IV Potions

You can permanently release a Pokémon in exchange for IV Potions. Only these Pokémon qualify, and only if they are not holding an item:

Pokémon	IV Potions
Legendary rarity	3
Ultra Rare rarity	1
Shiny (any rarity)	1

There are two ways to do it:

In the PC

Select the Pokémon in your PC storage and press Convert to IV Pots in the Selected Pokémon panel (Convert on small screens). You get the single best match, not a total: a shiny Legendary gives 3. The Extract IV Potion confirmation tells you how many potions you will receive.

The Extract IV Potion window asks you to confirm before the Pokémon is released.

At Prof. Rowan's Lab

Give the Pokémon from your party to one of the IV Scientists in Prof. Rowan’s Lab (Sandgem Town). Each of the three IV Scientists takes one kind: Ultra Rare, shiny or Legendary.

Prof. Rowan's LabThe three IV Scientists wait in Prof. Rowan's Lab.

This cannot be undone

Either way, the Pokémon is released for good.

Related pages

Stats, IVs, EVs and naturesHow IVs, EVs and natures make up a Pokémon's stats.

Shiny huntingShinies have higher IV Potion limits and their own pity table.

Shops and currenciesWhere each shop is and how to earn its currency.

Dynamax InvasionsAnother source of IV Randomizers and IV Potions.

Credits

Based on Pokemon Stats and Iv Randomizer Pity System on the PBO forums. Rewritten and checked against the game on 1 October 2026. Shiny Pokémon got their own, higher IV Potion limits in June 2026, so older guides show lower numbers for them.