i currently have a lvl 18 tank with singe and I love it but I have always wanted to use samael. Is samael still viable for a lvl 10 or lvl 17 rogue or is the stat difference between samael and pets like singe or maridos too large?

And if I made a lvl 10 rogue, what guilds are at lvl 10? ive seen lots of red legion, what are the other ones

Thanks in advance for the help