One of the most popular competitive formats in Magic: The Gathering is Modern, which allows you to use cards from over 20 years worth of sets
With no Fire-type attacker in the deck, the only way to beat Metal is to KO 3 EXs before they have one Pokemon online
Today, most counterfeit cards are designed to pass various tests like the bend test and the light test, and some look almost exactly like the real thing, even upon close inspection (unless you're going really deep and using a jeweler's loupe, which is a good way to weed out fakes but too much work for the average player)
Alternative options to consider for this deck: Greninja: This Stage 2 mon can snipe off any weakened Pokemon on the Bench after Palkia ex has used Dimensional Storm
The Eternal Wanderer Board wipe
Before You Go In case you decide to go on a similar adventure, fueling up with lunch is an important first step