I'm a Rules Advisor now
"Simple questions" usually need rather complex answers, while complex questions often come down to no more than a simple "yes" or "no".
What part of hayaku ikee did you not understand?
Who truly runs this city? Look to the sky on hallowed days, and see whose sigil is stamped clearly onto the heavens. - Vuliev of the Ghost Council
We have no need for military might. We wield two of the sharpest swords ever forged: Faith in our left hand, Wealth in our right. - Vuliev of the Ghost Council
Options will cost you, but a lack of them will cost you even more.
The wizard who reads a thousand books is powerful. The wizard who memorizes a thousand books is insane.
A single dedicated mind can bring about the greatest destruction. That, or goblins - goblins work too.
Of course you should fight fire with fire. You should fight everything with fire. - Jaya Ballard, task mage
He unmakes the world in his own image.
Who's the crazy one now? - Torgle, mountaintop boatmaker
Fair? At what point in our negotiations did you convince yourself my goal was to be fair?
After breaking free from the Riptide Project, the slivers quickly adapted to life on Otaria - much to the dismay of life on Otaria.
DCI Certified Judge & Goth/Industrial/EBM/Indie/Alternative/80's-Wave DJDJ VortexDCI Certified Judge since July 13, 2013
DCI #5209514320My Wife's Makeup Artist Page <-- cool stuff - check it out
Or does she retain the name 'Bruna, Light of Alabaster' even though she becomes said 1/1 snake, which would allow the ability to take effect?
Yes, she retains the name Bruna, Light of Alabaster. Snakeform changes her colors, creature type, power/toughness, and abilities, but not the name, converted mana cost, and so on.
And even if she had gained another name (with say Mirrorweave), she'd still be the same permanent, the same game object, just now with different characteristics. She'd still be afected by the ability.