Thats more expensive than Helm of the Host
Enter the world of FINAL FANTASY at your local game store
Archelos, Lagoon Mystic Brokkos, Apex of Forever Brokkos, Apex of Forever Damia, Sage of Stone Felix Five-Boots Glarb, Calamity's Augur Gonti, Canny Acquisitor Henry Wu, InGen Geneticist Indominus Rex, Alpha Kadena, Slinking Sorcerer Kotis, Sibsig Champion Kotis, the Fangkeeper Leovold, Emissary of Trest Maralen, Fae Ascendant Mimeoplasm, Revered One Muldrotha, the Gravetide Muldrotha, the Gravetide Nashi, Moon's Legacy Nine-Fingers Keene Otrimi, the Ever-Playful Rayami, First of the Fallen Sidisi, Brood Tyrant Sin, Spira's Punishment Teval, Arbiter of Virtue Teval, the Balanced Scale The Master, Transcendent The Mimeoplasm The Wise Mothman Volrath, the Shapestealer Vorosh, the Hunter Xavier Sal, Infested Captain Yarok, the Desecrated Zaxara, the Exemplary Zimone and Dina
Make sure your opponents dont have unlimited hand sizes from cards like Reliquary Tower
Although Counterspell has been a true contender in trying to substitute the discard spells, I think Thoughtseize is for Modern what Force of Will is for Legacy and Vintage
Its time in the sun is gone, but its value has stayed steady