Cheapest priced copy (Outlaws of Thunder Junction): $5.49 at Card Kingdom, near mint, their price list as of .
The Gitrog, Ravenous Ride 
Legendary Creature — Frog Horror Mount · 6/5 · Mythic · Outlaws of Thunder Junction Promos · #206p
Trample, haste
Whenever The Gitrog deals combat damage to a player, you may sacrifice a creature that saddled it this turn. If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creature's power.
Saddle 1
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
5 printings · $5.49 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 206 | Mythic | $5.49 | $5.99 |
| Outlaws of Thunder Junction | 352 | Mythic | $10.99 | $12.99 |
| Outlaws of Thunder Junction Promos | 206p | Mythic | $5.99 | $8.99 |
| Outlaws of Thunder Junction Promos | 206s | Mythic | — | $8.99 |
| Secret Lair Drop (Panthor, Savage Cat) | 2791 | Mythic | $6.99 | $7.99 |
8 rulings from Wizards of the Coast
- 12 April 2024Creatures with saddle can attack or block as normal even if they aren't saddled.
- 12 April 2024"Saddled" isn't an ability that a creature has. It's just something true about that creature. It won't stop being saddled until the turn ends or it leaves the battlefield.
- 12 April 2024An ability that triggers when a creature "attacks while saddled" will trigger only if that creature was saddled when it was declared as an attacker.
- 12 April 2024Putting one or more land cards onto the battlefield with The Gitrog's triggered ability doesn't count as playing a land. It can put land cards onto the battlefield even if you've already played your land for the turn.
- 12 April 2024If a permanent becomes a copy of a saddled Mount, the copy won't be saddled.
- 12 April 2024Use the power of the sacrificed creature as it last existed on the battlefield to determine the value of X.
- 12 April 2024You may activate a permanent's saddle ability even if that permanent is already saddled.
- 12 April 2024"Saddle N" means "Tap any number of other untapped creatures you control with total power N or greater: This permanent becomes saddled until end of turn. Activate only as a sorcery."