Pentagram - Transmits heat from hells to the mortal earth. Heats you up, sanity monsters can not get inside of the pentagram.
Gexogram - Slows hunger rate. Scares off spiders.
Algiz rune - Feel the peace. Heals you wounds.
Evil eye - Eye of the one, who sees all. Grue can't enter the rune. Restores sanity in cost of health and hunger.