The cost of the card should increase, then.
holy light got a buff already, it got upgraded from 5 heal to 10, if you ask me, thats a pretty good heal for its cost
but what would happen if coupled with protect artifact? you'd be unstoppable. regen would just go up and up annd up until forever, and unless the opponent can hit you with 100 pts a turn, you can't lose, little OP in this case
It's a good thing that the upgraded cost is 1 , not 1 random quantum. That would make stall decks so OP...