0.9.11 - Windows - Koloss card stat boosting effects

The card doesn’t boost the HP from ruby paragon (+100% HP)
What is a stat-boosting effect?

I believe it just means things like spells that raise max HP (Clayman and Determination come to mind) I wouldn’t think something that makes all creatures have more health would count, but maybe.

Also Walken is a Trait example since he gains max health after his turn.