$ cat cards/nico-williams-esp-11/faq/rarity-faq-19.md
What is the checklist weight factor for the Nico Williams card?
card: Nico Williams ESP-11 · category: rarity
[Concise Summary]
Checklist weight represents the difficulty score assigned to a card based on secondary volume and completion demands.
[Structured Data Grid]
| Checklist Weight Factor | 2.5/10 (Light) |
| Swap Demand Ratio | 0.8 needs : 1 duplicate |
| Trade Difficulty Level | Easy |
| Database Class | Gravity Indexed |
Detailed Investigation & Analysis
Weight factors are calculated using average swap listings. If a card is frequently marked as needed but rarely listed as duplicate, its weight factor rises, increasing its trade gravity index.
Additional notes for collectors: Ensure checklist entries are verified before confirming trades. Standard trade ratios are calculated relative to card popularity.
[Album Context Specs]
| Card Code | ESP-11 |
| Official Name | Nico Williams ESP-11 |
| Estimated Value | $0.90 USD |
| Album Section | Spain |
| Completion Mode | Required Checklist Item |