The Left gets various High-Level spells including, but not limited to, Flowing Hellfire(Of course), Ether whatever(Multi-target MYS) and I think it gets Magicial Hellfire(Multi-target MYS dmg, can cause PSN, PAR, SIL and DTH) as well. problem with keeping one minion alive and beating up the main is that, *if* I am correct, the Main portion will NOT die until all minions are dead, unless your fighting the V.2 of the boss.