Oh nice, those are really good ideas! I'll make those changes 😊
FYI the limit to the knife summon seems not to be functioning. If I understand the card-text right, he should be losing health as he heals, and heal only up to 3 health (or whatever his health is at the time knives are activated). For me, all copies of the knife summon are healing an unlimited amount, and not suffering any health loss from healing.