mewtwo pokemon card 10 102 Base Set Holo 10/102 PSA 7 – TBC Games [PP] Barrier Mewtwo 1st Edition - Vintage

Put a stun counter on it

There does appear to be a small mill theme in here with Wall of Lost Thoughts and Persistent Petitioners, but I imagine that attacking with beefy creatures will be a much better avenue to pursue (though I recommend keeping this on the backburner)

Currently, the OM1 and OMB set symbols are virtually indistinguishable from one another

Often comparable to or higher than Method 1, but proxy services give you access to out-of-print sets and auction deals

Jace, the Mind Sculptor is legal in Legacy, Modern, Commander and Vintage

For added tankiness and consistency, Arceus ex also has the Fabled Luster ability