Fanatical Frenzy is a Zealot empire's special power in Spore Space Stage, and in the Galactic Adventures expansion pack can also be obtained by dressing the Captain with all four Zealot parts. It is a socialization tool that captures entire systems at once and would be way too OP if it didn't break Galactic Code (the equivalent of the Geneva Convention) to the tune of 100 demerits with every other empire within a dekaparsec.