What happens if multiple Pure Reflectios are in the battlefield and somebody casts a creature spell? How many tokens will end up in play?

For reference oracle text:

Pure Reflection
2W
Enchantment
Whenever a player casts a creature spell, destroy all Reflections. Then that player puts an X/X white Reflection creature token onto the battlefield, where X is the converted mana cost of that spell.

Thanks everybody.

A.