An attempt to fill a common counterspell slot as well as secondary color usage of Discovery.

Could we change this to something like "Counter target spell unless its controller pays X, where X is your discovery." CMC at common is a red flag for complexity, something like this would be better at uncommon.

Yea I was thinking of just changing this to uncommon. Your suggestion could be a separate card at common though.

This could be something like

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Counter target spell.

If your discovery is three or more, draw a card.

Or:

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Counter target spell unless its controller pays .

If your discovery is three or more, counter that spell instead.

Why? I guess it faces the issue that many Discovery cards do, in that they can be a weak play until the mid to late game.

Discovery outside of its primary colors is often hard to achieve at higher numbers. As a control player I don't want my counters to be just not doing stuff, as my discovery being high isnt going to be a priority. I think it's better to have threshold discovery on cards outside of the primary colors. It encourages them to care about their discovery but doesnt force them to have to find ways to generate a large discovery so their cards work well.

The argument with threshold discovery is valid. As was already said, there are some keycards for certain colours that really should be able to do what they usually do without a lot of caveats. Counters are among those cards for Blue. As this card is right now, I don't see it being even remotely playable unless you go for Discovery, which you do not want to do in Blue. Honestly, as much as I like our mechanics, I find it rather troubling that we cram them into every colour, especially Discovery which just doesn't work as good on its own without support. It's just not comparable to Landfall in that regard. Let's keep Discovery to the fringe cards outside of .

That makes sense, it is a concern that "equal to your discovery" stuff doesn't generally work out too well in many cases for off-color.