1. Apologize for my lack of patience. Since this is kind of a new card mechanic, I really want to get more opinions from the community.
2. The name Illuminator is meant to be hope-giver or something like that. It does give you hope because of its effect only gets strong when you get weaker (lower HP), meaning that it gives you the hope of turning the tide and avoiding death.
3. I'm not sure about the anti-synergy with SoD and stone skin. Max HP does not affect this card. Only your current HP and number of cards in hand will determine whether you gain 10 HP or not.
4. I may increase the attack of upped version to 6 if it is considered too weak. I refuse to increase the HP because it has no summoning sickness (automatic activation, like devourers) which means you get at least 10 HP from it if you are doing it right. Assume you pack 6 of this in deck and only draw 3 of them, you still get healed for 30HP whenever you HP gets low. This possibly the best healing per turn if you can activate it every turn.