Originally Posted by theemus

At one point chromaggus only used his ignite flesh debuff and it was reapplied every 20 seconds so you would eventually get the dot ticking for about 12000 dmg basically making the encounter impossible.

Some guilds found out that if you had a tank standing on the ramp with chromaggus positioned at the top of the ramp attacks could still be exchanged but the ignite debuff would not hit due to LOS.