On Duty Icon (Teemo infront of computer)

Does anyone know if they Icon from Surrender at 20 with Teemo infront of computer will be achieved by doing quests, paying, or is it a limited-time kind of icon? Please let me know, I really don't want to miss it if that's the case. > https://3.bp.blogspot.com/-gs_swtm_WzY/W5loUyT0f1I/AAAAAAABHQE/CFnOaj22_9woSeFoelFo0JchbPMu7wMOACLcBGAs/s1600/3623.jpg
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