>>41972104Huh, so some of the anons ITT have theories regarding why it needs 49 damage specifically—but I like your theory why the Yamask needs damage at all.
To add onto this, I just checked its stats on a hunch—Galarian Yamask learns Curse at level 36, and its lowest base HP at level 50 is 98.
Using Curse once in battle (before being a high enough level to have more than that HP) would be enough to activate the evolution at the rock formation afterwards.
It is possible GameFreak was considering incorporating Curse into the evolution instead of (or in addition to) taking a specific amount of damage, but that likely would have made things much more complicated to program and/or pull off during gameplay.
