There are many different strategies to get through a Rieve, But there are also many different given situations as to why to get through a Rieve.

Situation 1.) To get through the Rieve by killing the Root to get to the other side. (Just like the chicken did.) PLD is great for this, preferably an Ochain PLD.

Situation 2.) To not kill the root at the Rieve and just farm mobs for their bayld. (The mobs do re spawn.) Sleeping is great for this.

Situation 3.) To Kill the Root, Nest and or the mobs while under sneak and invisible. (Stalkers R U.) Mostly any Pet jobs are good at this.