Jhesiyra, Living Wish

Whenever you cast an instant or sorcery spell
create a X/X blue Living Spell creature token
with "{2} + The converted mana cost of the spell:
cast the spell" where X is equal to half the spell's converted mana cost.
{6}{w}{r}: Cast Wish without paying its mana cost.
This does not create a Living spell token.
In an incident Mystra wasn't explain, the mantle of Magister passed from Jhesiyra to Nerren, with
Jhesiyra having transformed herself into a particularly powerful living spell.