In VtES Frenzy is a keyword/trait with no inherent game effect. Here's a list of cards which are considered Frenzy cards in VtES (mostly because I couldn't find one on the interwebs). Frenzy cards usually have either two effects, they allow a vampire to enter combat with another vampire or they prevent the vampire subject to the Frenzy card from using equipment and/or maneuvering. Interestingly not only cards requiring Animalism are Frenzy cards, but there some requiring Presence.
- Battle Frenzy
- Brujah Frenzy
- Deep Song
- Drawing out the Beast
- Scourge of Alecto
- Terror Frenzy
- Bestial Vengeance -- immunity during the current combat
- Blade of Enoch -- immunity for the bearer
- Call the Wild Hunt -- immunity during the current combat
- Sire's Index Finger -- immunity for the bearer
Lord Aaron & Aleister Crowley, Laecanus & Gotsdam are immune those cards.