Dragon Slayer
Dragon Slayer is a special upgrade in Loot Grinder, the free medieval idle clicker.
What it does
A knight protects your peons from dragons. (A knight protects your peons from dragons.)
Cost
It costs 300M loot and is a one-time purchase.
Why it’s useful
Fewer peons lost to disaster means your loot-per-second never craters mid-run — protection upgrades pay off as insurance on everything else you’ve built.