REDU format ruling
Lady Assailant of Flames

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)FLIP: Banish the top 3 cards of your Deck; inflict 800 damage to your opponent.
Rulings
- If you have fewer than 3 cards in your Deck when this card is flipped face-up its Flip Effect does not activate.
- Removing 3 cards from the top of your Deck is part of the resolution of this card’s Flip Effect, not part of the cost. So if its Flip Summon is negated by Solemn Judgment you do not remove any cards from the top of your Deck.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.