Cheapest priced copy (Kaladesh): $0.35 at Card Kingdom, near mint, their price list as of .
Aetherborn Marauder 
Creature — Aetherborn Rogue · 2/2 · Uncommon · Kaladesh · #71
Flying, lifelink
When this creature enters, move any number of +1/+1 counters from other permanents you control onto this creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaladesh | 71 | Uncommon | $0.35 | $0.49 |
| Outlaws of Thunder Junction Commander | 125 | Uncommon | $0.35 | — |
4 rulings from Wizards of the Coast
- 20 September 2016You may move +1/+1 counters from any number of other permanents you control, not just from one.
- 20 September 2016You may choose to move zero +1/+1 counters.
- 20 September 2016If a creature has been dealt damage, that damage remains marked on it until the cleanup step. If Aetherborn Marauder takes counters from a creature that has been dealt damage, that creature will be destroyed if the damage is now lethal.
- 20 September 2016You choose which counters to move as Aetherborn Marauder's triggered ability resolves.