Cheapest priced copy (Outlaws of Thunder Junction Commander): $3.99 at Card Kingdom, near mint, their price list as of .
Rumbleweed 
Creature — Plant Elemental · 8/8 · Rare · Outlaws of Thunder Junction Commander · #32
This spell costs {1} less to cast for each land card in your graveyard.
Reach, vigilance, trample
When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction Commander | 32 | Rare | $3.99 | — |
| Outlaws of Thunder Junction Commander | 68 | Rare | $3.99 | — |
2 rulings from Wizards of the Coast
- 12 April 2024Rumbleweed’s first ability doesn’t change its mana value, which is always 11.
- 12 April 2024Rumbleweed’s last ability affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn and noncreature permanents that become creatures later in the turn won’t get +3/+3 or gain trample.