Let's say I am a Bard, and I have 1 level in Sorcerer, giving me a Sorcerous Origin, and I choose Wild Magic. Does Wild Magic Surge trigger off of any spell I cast that just so happens to be on the Sorcerer spell list?
Example:
If I cast Charm Person, a spell obtainable by Sorcerers and Bards, but I obtained that spell by leveling up as a Bard, does that count as a Sorcerer spell when I cast it? Or are the only spells that count as Sorcerer spells the ones I gain when I take the level of sorcerer or gain levels in the sorcerer class?