This set, with its exciting Commander options and Beginner Box, has understandably captured players attention
Years later, after a lot of bittersweet sentiments, Mewtwo EX doesn't hold the same unrivaled prestige it once did - but some players still think the card is viable for deckbuilding
Some give flying, deathtouch, +1/+1 counters, hexproof, double strike, vigilance, haste, mana generation, sacrifice abilities, etc
You can even sort and search your collection with the familiar parameters offered in deckbuilding
Auras have been around forever, but theyve always presented a design problem
A lot of your cards will be able to crew this and so yeah, it is just an overly good card that fits neatly into this archetype