Charizard's dominance of the PSA population rankings mirrors its dominance of the market in general: it is the most sought-after, most financially significant, and most culturally resonant character in the franchise, and every new Charizard card generates outsized grading interest regardless of the set it appears in, the rarity it is printed at, or the era it belongs to
I think I can usually expect them to go heavy on removal, which helps with having time to cast it, so thats likely the card Id want more of to address this problem specifically
The math on gambling for the specific card doesn't work Open 2-3 booster boxes at MSRP for bulk commons, uncommons, and most reverse holos, then buy the remaining singles
The biggest knock against Unsettled Mariner is the fact that it is likely difficult to find room for multiple copies, but the ability to protect your creatures (and yourself) from spells your opponents cast is potentially quite valuable