Surge (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
Menace (This creature can’t be blocked except by two or more creatures.)
There are old goblins and ambitious goblins, but very few old, ambitious goblins.
Casting a spell for its surge cost doesn't change its mana cost or its mana value.
22-01-2016
wotc
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.
22-01-2016
wotc
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.
22-01-2016
wotc
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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.