This is somewhat unique to this game, that it was able to make different types of currency work well into the games economy.
Different types of currency:
Silver: base currency of the game used in market and npc transaction.
Talt/Silver bar/Gold bar: Silver alternative to bypass market tax and gain instant silver (previous patch has 24-48 delay of silver delivery).
Blessed Shard: Has an intrinsic value of 300k dictated by the reroll cube price. However, its perceived price may differ on demand by the player base. Prices may fluctuate from 250-330k. Furthermore, it can be traded multiple times.
Trash Cards: Currently rising in value as people find the importance of Level 10 card stacking. It has a perceived minimum price of 100k and is currently rising in value as there is somewhat a shortage of new cards being hunted.
Moreover, it can also be traded multiple times.