Mastery Pack Guardian: what's in the box
Released Aug 6, 2025. A booster box sells for $74.30 on TCGplayer as of October 16, 2026. Below: every kind of pull in the set with what its cards sell for, and the set's most valuable cards. Spread doesn't have documented pull rates for this set yet, so it can't yet say whether opening a box beats keeping it sealed.
Every kind of pull
Cards grouped by rarity or special printing, most valuable first. Pictures show the top cards in each; hover or tap for names.
| Kind of pull | Average price | Typical (median) price |
|---|---|---|
Marvel   12 cards | $359.70 | $183.62 |
Legendary   3 cards | $98.79 | $116.53 |
Extended Art   10 cards | $32.89 | $4.34 |
Majestic   16 cards | $7.57 | $3.58 |
Rare   31 cards | $1.70 | $0.98 |
Most valuable cards
- Testament of Valahai (Marvel)Marvel · $1,670
- Jarl Vetreidi (Marvel)Marvel · $1,000
- Ley Line of the Old Ones (Marvel)Marvel · $599.96
Valda, Seismic Impact (Marvel)Marvel · $249.07
Seismic Surge (Forest) (Marvel)Marvel · $230.35
Seismic Surge (Lava) (Marvel)Marvel · $212.48
Seismic Surge (Crystal) (Marvel)Marvel · $154.76- Base of the MountainLegendary · $117.19
- Ley Line of the Old OnesLegendary · $116.53
- Test of Iron Grip (Extended Art)Majestic · $102.56
Card makers don't publish pull rates. Log what came out of your boxes in the Pull Log: every log makes the rates more accurate, and once enough boxes are logged Spread can say whether opening beats keeping the box sealed.
Log your boxesPrices: TCGplayer market prices (recent sales). All Flesh and Blood sets · How pull rates are calculated.