Oracle

Instant 

Surge UU (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
This spell can't be countered.
Counter target spell.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

1/22/2016
For some cards, surge represents only an alternative cost, a discount that applies if you or a teammate has cast another spell this turn. Other cards, like Reckless Bushwhacker, have additional abilities or effects if you paid the surge cost to cast the spell.

1/22/2016
The other spell that you or a teammate cast can be one that’s resolved, one that was countered, or (for instants with surge) one that’s still on the stack.

1/22/2016
If an instant or sorcery spell cast for its surge cost is copied, the copy is also considered to have had its surge cost paid.

1/22/2016
Casting a spell for its surge cost doesn’t change its mana cost or its converted mana cost.

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