He is undoubtedly really important from Weismart's blog

Blessmaster: Limit 1 (Please notice the Blessmaster can not enter the portal site weilding a shield or weapon as RuneScape gold both their hands should be free to maintain the Book of Guthix' Knowlege; while holding this they CAN NOT run.) All Roles possess the very same skills and goal, which is to purify both shrines from the celler of another Palaces to Balance.

The order of power is Peacemaker who casts a prayer on the shrine; this is going to cut every soldier in that armies stats in half. Subsequently the Purifier purifies the holy or unholy entities inside the shrine, which balances itthis causes all abilities of that armies soldiers to quit working. The Balancer then casts his/her spell on the shrine which starts the process of balance; this is going to prevent the armies soldiers out of using special attack.

Next is the Druid's turn, they need to set the 6 candles of balance they were awarded at the beginning around the shrine, then lighting them. The Saint is the last role prior to the Blessmaster can complete the job, He/She must cast their spell which will create a sanctuary of equilibrium all over the shin, this can consist of trees, bushes, a pond, as well as other character scenery; this will set the stage for your Blessmaster.

He is undoubtedly really important. He has to buy OSRS gold wait until one of the Saint's has done his job, then he should traverse across the war room,dodging arrows, magical, and and warriors. He must then Operate the Book of Guthix' Knowledge.