Advanced format ruling
Flamvell Uruquizas
Card effect (current official text)1 Tuner + 1 or more non-Tuner monsters
During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent. This card gains 300 ATK each time it inflicts Battle Damage to your opponent.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.