Magadon Kest Magadon Kest was a tiefling psionicist ( or " mind mage " ) who was sired by Mephistopheles , Archduke of Cania , and a human woman . Close friend of the late Erevis Cale and the exarch Drasek Riven , he was instrumental in the struggle against the returned Netherese who were led by Shar - worshiper Rivalen Tanthul . History . After the return of the Netherese city of Sakkors , Magadon was captured by the Shadovar and force to link his mind with the quasi - sentient Mythallar known as the Source . As a result , Magadon is " addicted " to the Source . His power when linked to it was increased greatly but , the addiction made him a puppet for the Netherese lords , which used the Mythallar to create soldiers for the upcoming Shadowstorm . Working with Cale and Riven , he was eventually freed from his link with the Source but continued to struggle with the addiction . Magadon confronted his father , with the aid of Riven and Cale , in Cania , after the Archduke succeeded in facilitating the release of Mag ' s devilish nature . Though Mephistopheles had lured the three companions through Magadon , he engaged them in battle . Magadon was slain by his father after successfully pushing his devilish nature from the forefront of his mind . Rather than let his friend die , Cale made a deal with the Archduke . Mephistopheles agreed to resurrect Magadon on the condition that a portion of mask ' s divinity would be given to him when after the defeat of Kesson Rel . As collateral Mephistopheles kept half of Magadon ' s soul ; returning the other portion to Magadon who was returned to life . Magadon continued to help his companions against the Netherese , Shar and , ultimately , Kesson Rel , though with only half a soul his powers , and even his will , were much diminished . After the ensuing battle with Rel , Erevis and Drasek both absorbed portions of of the divine power which Rel had stolen from Mask . Cale then returned to Cania and by sacrificing himself fulfilled his bargain with Mephistopheles . The devil then returned the other half of Magadon ' s soul . After the events of The Shadowstorm , through The Spellplague , and after ; Magadon retired to the life of a tavern owner . During the events of The Sundering he was visited by his old friend and now godling , Drasek Riven . Riven asked Magadon for his help in the coming conflict , asking for no more than him to " be ready . " After a conflict with a group of devils hoping to gain Mephistopheles ' s favor and the loss of his tavern in the fight , Magadon prepared himself for what was to come . Magadon tracked down the floating city of Sakkors again , and with much saner mind , made psionic contact with the Mythallar powering the city . Encountering a lonely and dying consciousness , Magadon connected with the magical device , readying himself . Once Riven ' s plans reached their peak , he mentally contacted Magadon . Magadon then directed Sakkors to Ordulin , the source of Sembia ' s perpetual twilight . With the Mythallar dying and Rivalen Tanthul all but dead , Magadon left the Mythallar with positive feelings as Sakkkors crashed into Ordulin while Brennus Tanthul held his brother in place , crushing the city and the brothers with it .