Sometimes, in the red wheat fields of Kos, where the hills loom and bones slowly moulder, you can find the Wheat Man lurking.
It is well-known that sighting the Wheat-Man is a sign of good fortune. To represent this, any member of a party sighting the Wheat-Man gains a bonus of +1 to any attack, ability check or saving throw that would otherwise have failed by a single point. In such cases, the DM should merely state that the character was successful despite being one point shy.
If you attack the Wheat-Man, you will surely never see him again.