At this time, there are no rules against informal alliances between vampire clans (or “teaming”) on official servers. We encourage players to seek in-game solutions to situations like this through play.
We understand that not all players may enjoy this aspect of PvP. If this kind of player interaction isn’t fun for you, we encourage you to find a private server with stricter rules that can better fit your needs.
If you’re playing on a private server where teaming or informal alliances between clans are against the private server’s rules, please contact the private server administrator or moderation team for further guidance and assistance.