These aren't compensation for the maintenance earlier either.
I don't know if the game is being buggy, but I just got 3 Wild Tonics in my inbox with the description: "Event - Prize Conditions Met" but the guild battles haven't even started yet. o_o
The only thing I've been doing for the past few hours is some last minute grinding for some of my units and then I suddenly see some wild tonics appear in my inbox.
Has this happened to anyone else? I'm not complaining but I want to know why they just randomly appeared there.
Edit: Nevermind, I just needed to research/google more, haha.