Anyone know and can help me how to get Cursed Effigy as our challenger Thank you for helping me

Cursed Effigy is a seasonal Fireside challenger. Cursed Effigy, the Tormented can be summoned with the

the regular cursed effigy sometimes visits us around fireside, cursed effigy, the tormented can be unlocked using

& thank you so much to let me know i will trying to get him now