As far as strategy goes if you are using more than one Espeon in your deck or another Eevee-evolution in your deck it would only make sense to have Espeon in your deck so that that other Eevee evolution would have 20 more hp
Down below you can find out how much each is, what type of deck it contains, and where to get it
The decks were based off of the Japanese VS set, in which all Pokmon were basic stage even those that evolved from earlier stages
Here are all of the cards in the 'Mega Rising Museum 6' Secret Mission: Whimsicott ex #273 (Rainbow / Two Gold Star) Mega Ampharos ex #277 (Rainbow / Two Gold Star) Indeedee ex #278 (Rainbow / Two Gold Star) Tauros ex #283 (Rainbow / Two Gold Star) Rewards: 36 Wonder Hourglasses, 12 Pack Hourglasses and 10 Shop Tickets
Years have passed since the Luke Skywalker and the Rebel Alliance were victorious but a new darkness is rising
When used in-game, the Masters Key card text (as translated from Japanese) allows the player to draw a card, before flipping a coin