Towns who host tournaments make ALOT of shards from selling stalls, but none of those shards ever leave the economy. There’s basically no shard sink, which means sellers just keep stacking insane amounts over time. I think adding a small tax, like 5–10%, could help a lot already. The tax on stall earnings would remove a good amount of shards from the economy which then would prevent more shard inflation. I don't know how you would exactly be able to implement this, but I think it is needed because towns easily make 1-1.5 million shards just off selling stalls, so a tax on them is needed in my opinion.