The new shop lets you buy letter stones and items or reroll the available offers. Items change the rules of your run and can be freely combined.
Letter stones you no longer need can be dragged onto the melting icon at any time. The number of shards you receive depends on the quality of the stone.
If you exceed your hand limit, you will take overload damage after attacking. The further you exceed the limit, the more damage you take.
Have fun trying out the new features! Feedback is always welcome.