Purifying Shadow Pokémon can be a game-changer—but is it always worth it? Let’s break down the math, costs, and trade-offs using a Purify Calculator approach.

How Purification Works: Formulas & Mechanics

IV Boost Formula

Purification increases each IV by +2 (capped at 15):

Purified_IV = Shadow_IV + 2 (Max 15)  

Example:

StatShadow IVPurified IV
Attack11→ 13
Defense14→ 15
HP8→ 10

CP & Level Changes

  • Purified Pokémon jump to Level 25 (if below).
  • CP is recalculated based on new IVs + level.

Cost Reduction

  • Power-up costs drop by 10% Stardust & Candy.

When to Purify vs. Keep Shadow?

ScenarioPurify?Reason
PvE (Raids/Gyms)❌ NoShadows deal 20% more damage.
PvP (Great/Ultra League)✅ YesHigher IVs often outperform Shadow bonus.
Hundo Potential✅ YesPurifying 13/13/13 → 100% IV.

Pro Tip: Check bulkpoints with a Pokémon GO Level Calculator before deciding.

Best Purify Calculators

  1. PvPoke.com (Simulates PvP performance)
  2. GamePress CP Calculator
  3. Pokémon GO Hub’s IV Tool

FAQs

Does purifying guarantee a Hundo?

Only if the Shadow has 13/13/13+ IVs.

Should I purify for Mega Evolution?

Yes! Purified Megas save Stardust.

How does purification affect XL Candy?

No impact—use a Level Calculator to plan beyond Lv. 25.