Magic: The Compulsive Hoarding / Hoardboard
Every printing.
One current truth.
ManaBox exports are full snapshots. Each import preserves its evidence, then replaces—not adds to—the current collection.
New source state
Import a full snapshot
Current inventoryNot loaded
No successful snapshotImmutable evidence
Snapshot ledger
Load the ledger or import the first snapshot. Failed imports remain inspectable but never become current.