
Oath of Jace
2U
Legendary Enchantment
When Oath of Jace enters the battlefield, draw three cards, then discard two cards.
At the beginning of your upkeep, scry X, where X is the number of planeswalkers you control.
Draw 3 to discard 2 is often worse than thirst, but not the worst in the world. At sorcery speed is bad, really bad, but at least it cantrips. However it has a second ability, really nice even with just 1 planeswalker, but current played pw already do card filtering, or even card advantage, so this is a bit redundant.
Playable in superfriends? I don't think so, but it's interesting at least.
Edit: on a second look, it seems even worse. Thassa, God of the Sea has unconditional scry 1 every turn, plus the ability of make unblocked creatures (not to speak about the relevan body with devotion), and has seen 0 (and I mean 0) play during several years. The draw 3 discard 2 is a bonus, but probably not enough,