Invalidate

[jeek]

Invalidate {W/U} {W/U}
Instant
Counter target spell that was not played from its controller's hand.

Invalidate {W/U}
Instant
Counter target spell that was not played from its controller's hand.
If was spent to play Invalidate, draw a card.

[EKM_Ichorid]

Invalidate {W/U} {W/U}
Instant
Counter target spell that was not played from its controller's hand.

Invalidate {W/U} {W/U}
Instant
Counter target spell that was not played from its controller's hand.

I think that's too expensive. I would say  {W/U} but that is pretty much the same thing. Two colored mana for a worse-than-Counterspell just isn't good.

[Anusien]

How much does this overlap with Nix?  While they do different things, they seem to target a lot of the same spells.

How tied are you to the ability to cast it for WW?  That potential makes it costed more; if it requires at least one blue you can probably make it a cantrip.

[jeek]

Let me know what you think about the update.