Based on the OBD wiki: Foe is a scientific unit used to quantify the most energetic events in the Universe. 1 Foe equals 10^44 joules or 10^51 ergs (This being why it's called Foe or "[tenth power of] Fifty-one ergs"). This is also rather convenient because the normal Type Ia supernova usually releases energy equating between 1 and 2 Foe under just a few seconds. It is also worth noting that Foe has no plural form. It is always in plural as this is an abbreviation referring to "fifty-one ergs". 5500 Foe or 5.5 x 10^47 joules of energy. -GBE of the smallest star: 0.16 mili-foe -Attack Potency