It could see play in niche Lightning/Starfall synergy decks or limited formats, but in optimized Constructed Wizard lists, there are typically more efficient or higher-ceiling options available
I'm also a current teacher, college professor, streamer, community leader, and content creator
That said, unless you are planning on opening a lot of boxes (to help even out variance), I'd probably plan on getting the non- Masterpiece value and treat the possibility of opening a super-sweet, super-expensive Invocation as a bonus lottery ticket that you get for free when buying a box of Amonkhet
Rarity: The Foundation of Value Rarity is the single most important factor when determining the worth of valuable Pokmon cards
Like most Pokmon cards, the value of Team Rocket's Mewtwo ex 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 (Destined Rivals)