What is this card worth

Unstable Obelisk CMM 416 $0.30 - 0.31 Unstable Obelisk SCD 286 $0.14 Commander deck Unstable Obelisk 40K 260★ $2 Commander deck Unstable Obelisk 40K 260 $0.36 Commander deck Unstable Obelisk VOC 170 $0.24 Commander deck Unstable Obelisk AFC 220 $0.26 Commander deck Unstable Obelisk C21 272 $0.28 Commander deck Unstable Obelisk JMP 489 $0.21 Unstable Obelisk C18 227 $0.27 Commander deck Unstable Obelisk CM2 227 $0.39 Commander deck Unstable Obelisk C17 229 $0.17 Commander deck Unstable Obelisk C14 58 $0.24 Commander deck