Proving Grounds (OGS)
released 2025-10-31
- 24
- cards
- –
- booster box
- $56
- all singles
- 58%
- bulk (<$1)
The chase
What's worth pulling from Proving Grounds
Set anatomy
What a box of Proving Grounds actually contains
| Tier | In set | Per box (est.) | Specific card | Avg price |
|---|---|---|---|---|
| Common | 5 | 168 | 1 in 1.0 boxes | $1.02 |
| Uncommon | 3 | 72 | 1 in 1.0 boxes | $0.60 |
| Rare | 8 | 42 | 1 in 1.0 boxes | $4.77 |
| Epic | 8 | 6 | 1 in 2 boxes | $1.34 |
Rough box EV ≈ $423
Structure: 24 packs × 14 cards (7C/3U/2 rare-slot); epic replaces a rare ~1-in-4 packs, alt art ~1-in-12, secrets/SP ~1-in-72. Community-observed rates (cardgamer, TechRaptor, Harlequins). Riot publishes no official collation. Specific-card odds assume uniform collation within a tier; EV is an average over many boxes, not a promise about yours.
Played staples from this set
