While I completely understand why your top dmg dealer had to leave for a hstr guild, branding him such a loyal guildmate might be a little too loyal on your part just because he promises to come back after he gets his 7* Traya. Pretty sure lots of people can make that promise. I mean assuming he can make top 10 in a hstr guild, it’s going to take him 6-7 months to max Traya. By that time you might be a hstr guild yourself. So all he is promising you is “let me go get my Traya now then I’ll come back and probably take #1 reward spot from you guys just as you start beating hstr”. A truly loyal guildmate would stay with you until you become a hstr guild.