It can be. Many prime for the first time under duress, but at the same time it can also feel as natural as breathing. The Phoenix feels simply like an extension of myself.
Back home using magic does take a toll on ones body. Instead of pulling aether from the land, it pulls from the person using the magic, causing an eventual petrification in Bearers and Dominants alike.
Here... feels different. I am not sure how to explain it other than any time I have called on my magic here it does not feel as though it causes the same harm. Perhaps it is drawing on something else in Vallo.