RG Live WotLK 3.3.5a

http://www.tentonhammer.com/guides/ruby-sanctum-guide

"Fiery Combustion – This ability has three separate effects. The first effect is a DoT that Halion casts on a random non-tank player every 20 seconds."

"Soul Consumption - This is an equivalent to phase ones Fiery Consumption with two minor differences. The first difference is that the damage caused is shadow damage instead of fire. The second difference is that instead of players being thrown away if they are caught by the zone drop they are sucked to the middle of the shadow zone."