You can find SIR Mega Darkrai ex, MHR Mega Darkrai ex, SIR Morpeko ex, and SIR Mega Zeraora ex which are worth up to almost $400
And she can do it at least 2 turns in a row
By itself, the card combines exceptionally well with any token-based strategy (I'm thinking Commander here)
This means Japanese collectors often chase event promos and limited cards as part of their culture of collecting, whereas English collectors might focus more on set completion and high grades
And even when it does, it will only be useful for instants, sorceries, Demons, and Spirits
Though let's be honest, the mouse is usually an 8/8 or something by turn 2 anyway