Surges Strategy, Electromagnetic Radar, Cleffa, Giovannis Exile, Graveler, Porygon2, Martial Arts Dojo, Fairy Charm L, Poliwhirl, Devolution Spray Z, Metapod, Kogas Trap, Dust Island, Pyukumuku, Fire Crystal, Weepinbell, Surprise Box, Torracat, Energy Spinner, Charjabug, Chip-Chip Ice Axe, Samson Oak, Janine, Raticate, Triple Acceleration Energy, Fairy Charm Ability, Tyrogue, Stealthy Hood, Chatot, Electromagnetic Radar, Frogadier, Beast Bringer, Power Plant, Lairon, Greens Exploration, Wartortle, Gloom, Haunter, Cleffa, Happiny, Dust Island, Golbat, Tentacruel, Pokgear 3.0, Molayne, Giovannis Exile, Dusk Stone, Raticate, Lt
First, as a Basic Pokmon with high HP, Mewtwo is playable right away, without needing evolution cards
Combine it with Sensei's Divining Top or Mishra's Bauble to control whats on top and minimize damage while you maximize value
For just one black mana, you get a whole new hand of cards - that's absurd
It also works on non-creature artifacts, which you dont always see, and the scry 1 is a nice bonus added on top
So, if youre in Boros, Golgari, Izzet, Orzhov or Simic, youll have access to more color fixing