Cheapest priced copy (Commander 2015 Oversized): $0.49 at Card Kingdom, foil, near mint, their price list as of .
Daxos the Returned 
Legendary Creature — Zombie Soldier · 2/2 · Mythic · Commander 2015 · #43
Whenever you cast an enchantment spell, you get an experience counter.
{1}{W}{B}: Create a white and black Spirit enchantment creature token. It has "This creature's power and toughness are each equal to the number of experience counters you have."
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 43 | Mythic | $11.99 | — |
| Commander 2015 Oversized | 43 | Mythic | — | $0.49 |
| The List | C15-43 | Mythic | $11.99 | — |
6 rulings from Wizards of the Coast
- 4 November 2015The ability that defines the token’s power and toughness is part of the token’s copiable values. Copies of the token will also have that ability.
- 4 November 2015Putting an enchantment creature token onto the battlefield won’t cause Daxos’s first ability to trigger. On the other hand, constellation abilities trigger whenever an enchantment enters the battlefield under your control, so those abilities will trigger.
- 4 November 2015The power and toughness of the tokens will change as the number of experience counters you have does.
- 4 November 2015Each game pack includes a card labeled “Experience” with the suggestion “Place your experience counters here.” This card isn’t required for play. It’s simply a convenient spot to put your experience counters, which can be represented with dice, glass beads, or other small items.
- 4 November 2015Experience counters are the second kind of counters a player can have, joining poison.
- 4 November 2015All experience counters are identical, no matter how you got them. For example, the last ability will count experience counters that you got from the first ability, from another ability, from proliferating, and so on.