mtg arena what happens to extra cards Card Advantage—Two-for-Ones you may exile target land you control Equestria Daily - MLP Stuff!:

His -2 ability gives you a lot of mana easily (if you have Koth and 5 lands on turn 5, for instance, you can play Inferno Titan and have mana open to stop Mana Leak, or hit your opponent with a 9-point Devil's Play)

2 Ob Nixilis, the Adversary An impressive three-mana Rakdos Planeswalker, Ob Nixilis, the Adversary is shaping up as a card that may have a sizable impact on several formats

in 1.0, he is last seen being rocketed into the moon Dalamud, assumed dead

I add this card to most of my casual Commander decks because its almost never a bad draw due to its low cost and flexibility

For established players, I say you should buy this if you plan to introduce new players to the game or want to grab some new decks at a low cost to play out of the box with your playgroup