[Vicious Love]

Returning is a battlefield spell which instantaneously returns the caster to the home province. Ritual of Returning is a ritual spell which triggers Returning immediately after the mage is hit. Returning is a perfectly viable means of surviving even the high-end void summons. Ritual of Returning... not so much.

Now, the spell description does state that it won't work if the caster is already in the home province, but I'm pretty sure the game treats the void gate as a separate province, like the arena.