Cheapest priced copy (Foundations Jumpstart): $0.39 at Card Kingdom, near mint, their price list as of .
Savage Stomp 
Sorcery · Uncommon · Ixalan · #205
This spell costs {2} less to cast if it targets a Dinosaur you control.
Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don't control. (Each deals damage equal to its power to the other.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.39 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 710 | Uncommon | $0.39 | — |
| Jumpstart | 427 | Uncommon | $0.39 | — |
| The Lost Caverns of Ixalan Commander | 257 | Uncommon | $0.39 | — |
| Ixalan | 205 | Uncommon | $0.49 | $1.99 |
3 rulings from Wizards of the Coast
- 29 September 2017If the creature you control is an illegal target as Savage Stomp tries to resolve, you won't put a +1/+1 counter on it. If that creature is a legal target but the other creature isn't, you'll still put the counter on the creature you control.
- 29 September 2017You can't cast Savage Stomp unless you choose both a creature you control and a creature you don't control as targets.
- 29 September 2017If either target is an illegal target as Savage Stomp resolves, neither creature will deal or be dealt damage.