FOILCheapest priced copy (Commander 2015 Oversized): $0.59 at Card Kingdom, foil, near mint, their price list as of .
Kalemne, Disciple of Iroas 
Legendary Creature — Giant Soldier · 3/3 · Mythic · Commander 2015 Oversized · #45
Double strike, vigilance
Whenever you cast a creature spell with mana value 5 or greater, you get an experience counter.
Kalemne gets +1/+1 for each experience counter you have.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.59 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 45 | Mythic | $10.99 | — |
| Commander Anthology Volume II | 7 | Mythic | — | $9.99 |
| Commander 2015 Oversized | 45 | Mythic | — | $0.59 |
3 rulings from Wizards of the Coast
- 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.
- 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.