Rusted spearhead
All across Sejan, ancient rusty spearheads wait for unsuspecting people to step on them. Nobody in Taodal seems to know about the ancient nation or army they've come from. The only practical use the people of the peninsula have found for them is reforging them into nails. For the player, the rusted spearhead serves as a rather ineffective weapon, an easy source of some krats, and a real pain in the foot.
In total, the player can find six spearheads, after which no more encounters with them are triggered. You can choose whether or not you want to pick one up when you happen to find one. However, the latter option does not increase the number of encounters, which means that you'll receive a smaller total amount of them if you skip picking one up. Thus ignoring a spearhead if you step on one is not recommended.