Probabilities
Last updated: 10 November 2026
Basic pack
A basic pack holds 5 different cards. Each card is drawn at random among all the playable articles, so its chance of each tier is that tier's share of the articles. Free packs, the basic packs achievements give and the 10 packs of an instant refill, free or bought, are all basic packs with these odds.
| Ultimate | 0.05% |
| Mythic | 0.25% |
| Legendary | 1.2% |
| Epic | 3.5% |
| Super rare | 7% |
| Rare | 13% |
| Uncommon | 25% |
| Common | 50% |
67 pack
A 67 pack holds 6 different cards, all Epic or better, drawn at random among those tiers' articles. The chance of each tier, per card:
| Ultimate | 1% |
| Mythic | 5% |
| Legendary | 24% |
| Epic | 70% |
1 pack in 7 also holds a 7th bonus card: Mythic, or Ultimate 1 time in 13. The chance, per pack:
| Bonus card, any | 14.29% |
| Bonus card, Mythic | 13.19% |
| Bonus card, Ultimate | 1.1% |
Tiers
An article's tier follows how much it is read on Wikipedia, and is recomputed after each import. A card you own keeps the tier it had when you pulled it.
What you accept the day you sign up is in the Terms of use, and who runs the game is in the Legal notice.