Hi! It is important for beginners - when rolling - to tap often, stay relaxed, and focus on positional escapes. However, I would like to learn one submission well in order to occasionally launch an offensive attack when rolling on the mat! I think that I should learn a submission from either open or closed guard, perhaps even half guard; or I can learn a submission that can be applied similarly from all the guard positions! Lately, I have been studying the Armbar from Closed Guard. But I have also heard good things about the Triangle Choke too! So my question is, what submission from any guard position do you think is easiest to learn? How about most effective? And in general best for a starter? Or maybe I should learn a submission from a completely other position? What do you think? Thank you so much! If this isn't a smart question, please let me know!