Well I put blood Angel in the post but when you said Inarius vs Thanatos, that meant I was fighting him.
Oh no that versus stuff ain't mean anything, it's not like you are locked in, in 1on1 duels, you still can attack together the same target. I only made it that way for formatting sake.
Heal always works, it will restore 2 Health Points. However. I would like to remind you. You got only ONE. SINGLE. HEAL. For the entirety of the tournament.