pokémon tcg: mega evolution-phantasmal flames booster display box Phantasmal Pack and both Pokémon prepare to attack Pokemon TCG: Mega Evolution Phantasmal

This ability is ideal to be played alongside either cards that have excellent abilities that trigger when readied - such as Christopher Robin, Adventurer - or have very strong stats that are built for challenging opposing characters - thereby allowing them to quest and challenge in a single turn

Weakness: [Psychic]2

That kind of redundancy among combo cards is a boon for any deck, but its not even that easy to take those individual pieces out, as anyone who has played against Cat Oven combo in Constructed will tell you

You can target 1 "Therion" monster or 1 Aqua monster in your GY

Theres a new and interesting dynamic at play here

Only one of each card forces you to play cards you might not otherwise because theyre too expensive or clunky