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Fangkeepers FamiliarFangkeepers Familiar eliminates this by having a couple of very castable modes for when no countering is required

But it gets this extremely high position because we can now start talking Turn 1 kills

You can only activate 1 "Starry Knight Balefire" per turn

Green, blue and white cards in particular tend to be excellent at resisting Exile-based spot removal, whereas black and red cards have far fewer options available

In fact, several have just arrived in Japan, as part of the Shiny Treasure ex set

So, my favorite counter spell is CMC 5, can be used with a different cost and makes me smile whenever I cast it