My personal belief is that oryx is still alive and he could be the one pulling the strings and contacting uldren
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[b][i][u]oryx was killed in his throne world, and therefore is dead for good. It is very clear in d2 that savathun is the one controlling the taken and pulling the strings. She’s even the cunning witch queen for -blam!-’s sake her entire character is a string pulling double crosser.[/u][/i][/b]