Grail index V1 - What belongs in S-tier that I missed?

If you were building a high-end Final Fantasy TCG collection from scratch, these are the cards I’d consider the strongest long-term holds based on rarity, collector demand, historical importance, and character strength.

S Tier — The Core Grails

Wave 1 Cloud (1-182L foil)
The flagship modern Cloud.

PR-142 Cloud
Low production, true grail scarcity.

A-001 Cloud
Origin card.

A Tier — Elite

Wave 1 Sephiroth (1-186L foil)
The villain equivalent.

Vivi 3-017L Premium
Best Vivi card. One of the strongest asymmetry plays.

Sealed Opus I Wave 1
Historical sealed.

B Tier — Vintage / Art Museum / Side Lanes

Carddass Cloud #01
Strongest vintage Cloud.

Sleeper Tier
Vivi 28-016L Full Art
Triple Triad Squall
Low pop Art Museum PSA 10s