Cheapest priced copy (Magic 2014): $2.49 at Card Kingdom, near mint, their price list as of .
Savage Summoning 
Instant · Rare · Magic 2014 · #194
This spell can't be countered.
The next creature spell you cast this turn can be cast as though it had flash. That spell can't be countered. That creature enters with an additional +1/+1 counter on it.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $2.49 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2014 | 194 | Rare | $2.49 | $16.99 |
3 rulings from Wizards of the Coast
- 1 July 2013You don’t choose a creature card when Savage Summoning resolves. Rather, it applies to the next creature card you cast that turn, even if you cast it at a time when you normally could cast a creature and even if you cast it from a zone other than your hand.
- 1 July 2013If you cast multiple Savage Summonings in succession, they’ll apply to the next creature spell you cast. That creature will enter the battlefield with that many additional +1/+1 counters on it.
- 1 July 2013Spells that would counter Savage Summoning or the relevant creature spell can still be cast. They won’t counter the spell, but any additional effects they have will happen.