Board Game Arena

Hi everyone!
I don't understand, how attack works. For instance, I have a bone dragon, who deals 2 life damage, but an opponent has an opportunity to loose death instead. Does this mean, that an opponent has to loose only 1 death instead of 2 lifes, or 2 deaths instead of 2 lifes? And another question. For instance, my opponent is healer, and he uses his defence ability. Is he defending only against one life loss or against both life losses?

If you attack with Bone Dragon and your opponent has 1 death, they can spend 1 death to ignore the attack (instead of 2 life essence). If you use a Healer to ignore an attack, you block completely the attack (so there's no "spend 1-2 essences). The cost is activating your Healer which means that he won't be able to block the next attack.

Thanks!