If I control a Guardian Seraph
Other player has a Shivan Hellkite and pays 10 red mana to deal 5 damage to me.
Do I take 4 damage (since its a single source dealing me 5 damage), or is each 1 damage absorbed separately so I dont take any damage at all?
Each damage is a separate ping. The abilities don't all merge into one big heap of 5 damage, they resolve individually and deal 1 at a time. So the Angel prevents all of it.
Fluttershy is best pony.