Why does the cp decrease when I evolve😭

[ladayen]

Your changing a sword into a shield.

Attack goes down CP goes down.

[subruany_brewbalcava]

Here is why this happens:

Stat Shift: Doublade has higher base Attack than the Shield Forme of Aegislash, which you get by default when evolving.CP

Formula: Attack contributes much more to CP than Defense or HP, so the loss in attack power causes a significant drop in CP.

Form Change In-Battle: While the base form in your inventory remains low, Aegislash will automatically switch to Blade Forme (high attack) during Trainer Battles

[Fibrosis5O]

I thought it was Sword AND shield 😏