I've encountered a rather nasty Guadia while playing Retro Game Challenge's Guadia Quest, the "Game Guadia". Seeing how it looks like the game's (Retro Game Challenge's) antagonist, I was pretty sure I didn't stand a chance. I was correct.
My party members were level 6 when I attempted this, so I was wondering what level should I be before attempting to beat this Guadia?
What level should I be if I try to make a pact with this Guadia, seeing how that is a much greater challenge?