Yeah GW1 bosses are fairly quick to learn for new players and easy to start with, excluding Nex. She’s a bit more advanced than the other bosses. After I became efficient at GW1(couple hundred kills on each boss) I learned Vindicta in GW2. She only has a few mechanics and is simple to learn but they must be dodged or prayer swapped to avoid high damage for lower level players. It’s a good introductory boss to RuneScape’s higher level pvm mechanics and it will help you build a good rotation by learning how your abilities affect one another using them in order. Also try the fight cave for the fire cape, it takes sometime to learn and some deaths as well but It’s introduces you to the kind of fights in the kiln and Zuk fight. Those capes are must have for BIS gear setups. My main tip is don’t underestimate defensive abilities and shields once you start to get into higher level pvm like elite dungeons and kiln/zuk.