After I really knew what incoming and outgoing healing was, I was wondering about sacrifice. Incoming is when people heal you, and outgoing is the boost when you heal someone. Sacrifice damages you and then gives you or someone else more health. If I used sacrifice on myself (damage myself and heal myself) would it count as outgoing or incoming?
I believe it is considered an incoming heal Katherine. I have faced bosses which have place a healing Trap on me and the heal was reduced significantly.
You could try testing it by removing all the gear that boosts your incoming heals. If you are wearing gear with both in/out heal boosting, remove the incoming heal gear first and retest again.
After I really knew what incoming and outgoing healing was, I was wondering about sacrifice. Incoming is when people heal you, and outgoing is the boost when you heal someone. Sacrifice damages you and then gives you or someone else more health. If I used sacrifice on myself (damage myself and heal myself) would it count as outgoing or incoming?
I'm pretty sure it is incoming only, given that it is an attack spell (there is no "boost" applied on the way out). However, if others have tested, I could be wrong.
Any heal you cast on yourself applies both incoming and outgoing healing, because outgoing applies to every heal you cast, and incoming applies to every heal you receive (drains don't count as heals). So it would count as both.
Incoming applies to any healy from anywhere. Outgoing applies to spells cast by you. Because of this, any healing cast by you on yourself will always use both multipliers.