Cheapest priced copy (Outlaws of Thunder Junction): $0.59 at Card Kingdom, near mint, their price list as of .
Ornery Tumblewagg 
Creature — Brushwagg Mount · 2/2 · Rare · Outlaws of Thunder Junction Promos · #171p
At the beginning of combat on your turn, put a +1/+1 counter on target creature.
Whenever this creature attacks while saddled, double the number of +1/+1 counters on target creature.
Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.59 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 171 | Rare | $0.59 | $0.99 |
| Outlaws of Thunder Junction | 342 | Rare | $0.99 | $1.49Out of stock |
| Outlaws of Thunder Junction Promos | 171p | Rare | $0.99 | $2.49 |
| Outlaws of Thunder Junction Promos | 171s | Rare | — | $1.79 |
7 rulings from Wizards of the Coast
- 12 April 2024If a permanent becomes a copy of a saddled Mount, the copy won’t be saddled.
- 12 April 2024Creatures with saddle can attack or block as normal even if they aren’t saddled.
- 12 April 2024You may activate a permanent’s saddle ability even if that permanent is already saddled.
- 12 April 2024To double the number of +1/+1 counters on a permanent, put a number of +1/+1 counters on it equal to the number it already has. Other cards that interact with putting counters on it will interact with this effect accordingly.
- 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 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.”
- 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.