Hero power bug

[lossstarry]

I think there's a bug on Mistress of Ordenfell hero power,
 
I perfect evolve 1* lvl100 hero + 1* lvl100 slime = hero power goes 528 to 607 which means it added 79 power

then i perfect evolve 2* lvl1 hero + 1* lvl1 perfect slime = hero power goes 607 to 639
which means it only added 32 power

I think it's bugged because

1* + 1* = 0.000125 = 0.0125% of these stats are carried over to your final hero

2* + 1* = 0.0025 = 0.25%



3* + 1* = 0.05 = 5.0%


so the 2* + 1* should add more power than 1* + 1* evolution

The scaling percentages you mentioned suggest that the 2* hero combined with a perfect slime should indeed yield a higher power increase than the 1* combination. It could be worth reporting this to the developers for clarification, as it seems like the intended mechanics might not be functioning as expected. Have you tried reaching out to support about this?