Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Axebane Guardian 
Creature — Human Druid · 0/3 · Common · The List · #RTR-115
Defender
{T}: Add X mana in any combination of colors, where X is the number of creatures you control with defender.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | RTR-115 | Common | $0.35 | — |
| Return to Ravnica | 115 | Common | $0.35 | $4.99 |
| Tarkir: Dragonstorm Commander | 248 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 1 October 2012Axebane Guardian’s activated ability is a mana ability. It doesn’t use the stack and can’t be responded to. The number of creatures with defender you control is counted, and the color(s) of mana produced chosen, immediately after the ability is activated when the ability resolves.