Cheapest priced copy (Ninth Edition): $1.29 at Card Kingdom, near mint, their price list as of .
Thundermare 
Creature — Elemental Horse · 5/5 · Rare · Ninth Edition · #224
Haste (This creature can attack and {T} as soon as it comes under your control.)
When this creature enters, tap all other creatures.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $1.29 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ninth Edition | 224 | Rare | $1.29 | — |
| Ninth Edition | 224★ | Rare | — | $16.99 |
| Portal | 152 | Rare | $2.29 | — |
| Salvat 2005 | I49 | Rare | — | — |
| Weatherlight | 116 | Rare | $1.49 | — |