Urza's Command can drop the power of other player's dorks out of nowhere, make a Powerstone, make a tapped Construct token to win the game, and then scry and draw, so I think that the Construct and scry and card draw are the default here, and that's pretty good for four mana instant speed
Mega Gengar ex (Phantom Gate [XY4] 097/088) (PSA 10 Price: ~US$697) Although there were two Mega Gengar ex cards released, theres a very obvious reason why this Ultra Rare (UR) card is so much more valuable than the other card from the XY-P Promotional Cards
Summary Haunter's silly antics won Ash a Gym Badge in the original anime
The upside is interesting here, and in many EDH games, you should be able to mill 25+ cards with Space-Time Anomaly alone
With bounce lands like Simic Growth Chamber, you can start making extra mana early, especially when combined with cards like Explore or Arboreal Grazer
By playing Marco while leaving some DON