Like most Pokmon cards, the value of Electivire depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (HSTriumphant)
One thing to note however is the date and location the card was manufactured as this will change what makes the card authentic
The deck was lost to history until Cara Emily Querin, a notable historian in the Pokmon TCG community, worked with the brothers to recreate the list from scratch the best they could in 2014
It looks like an extra on Mighty Morphin Power Rangers
This resource includes everything you need to run a 60-minute lesson from start to finis This is a fun state research project, it is a great introduction to research while allowing kids to be creative and have fun
Here are some telling examples for Base Set holographic cards: This 20-to-1 ratio is consistent across most holographic cards from Base Set, Jungle, Fossil, and Neo sets