In The Lost Caverns of Ixalan collector boosters (12 packs per box), you can expect about 0.084 neon ink cards per box - roughly 0.0070 per pack. That works out to a 8.1% chance of pulling at least one neon ink card per box, or about 1 in 12 for your first hit. The chase end is often Cavern of Souls (about 1 in 740 for that specific printing).
Neon ink foil treatment on selected chase printings.
Per-printing expected pulls and odds of at least one per box.
| Card | Price | Expected / box | P(≥1) | 1 in N boxes |
|---|---|---|---|---|
Cavern of Souls #410a · mythic | $4,900 | 0.0014 | 0.1% | 1 in 740 |
Mana Crypt #17a · mythic | $3,361 | 0.0014 | 0.1% | 1 in 740 |
Mana Crypt #17e · mythic | $1,222 | 0.0027 | 0.3% | 1 in 370 |
Cavern of Souls #410e · mythic | $797 | 0.0027 | 0.3% | 1 in 370 |
Cavern of Souls #410d · mythic | $529 | 0.0054 | 0.5% | 1 in 190 |
Mana Crypt #17d · mythic | $495 | 0.0054 | 0.5% | 1 in 190 |
Cavern of Souls #410c · mythic | $442 | 0.011 | 1.1% | 1 in 93 |
Mana Crypt #17c · mythic | $346 | 0.011 | 1.1% | 1 in 93 |
Cavern of Souls #410f · mythic | $257 | 0.022 | 2.1% | 1 in 47 |
Mana Crypt #17f · mythic | $241 | 0.022 | 2.1% | 1 in 47 |