I could probably make it a bit more clear what it is, Ill have a think, but I'm glad you like the change! :)
haha nice! You can certainly start to break the game with the small node spells, hopefully in a fun way though
It's definitely fun, and feels like you have to pour a lot into a low node spell to get it to a strong point, so it's not really game-breaking (especially since you won't draw it every turn).
And the oakheart thing makes sense, I was just not thinking so I took a while to figure out the number specifically. Should really have been obvious but I was being dumb lol