Notes:

While Fae can only attack using a Divine Stone with only 30 uses, it is possible to steal a Fire Dragonstone with infinite uses in Fire Emblem: Binding Blade for Fae to use. This can be done in either Chapter 22 or 23 by having a Thief run up to an enemy Manakete and have the thief get berserked by an enemy spellcaster (although this can be very dangerous for the thief). Should the thief choose to steal from the Manakete, he/she will end up stealing a Fire Dragonstone, something that a normal thief not berserked would not be able to do. This will glitch Fae's battle animations, and may cause the game to crash.
Using the Fire Dragonstone against Idenn will cause severe graphical glitches, as shown below. – FE Wikia