Fargo's Mod/Tin Enchantment

The Tin Enchantment is a craftable Pre-Hardmode accessory.

It is themed after Tin armor and when equipped, sets the crit chance of all weapons to 5%. For every second, when one crit happens it increases crit chance by 5%, up to twice your crit chance, however it cannot increase your crit chance for more than 5% every second, and taking damage will reset the crit chance back down to 5%.