What is this card worth

Helm of the Host MSC 200 $5 - 8 Commander deck Helm of the Host MSC 437 $11 Extended art Collector Booster Helm of the Host BLC 276 $6 Commander deck Helm of the Host BRR 82 $16 - 30 Retro frame Helm of the Host BRR 82z $637 Serialized Serialized Helm of the Host BRR 19 $9 - 19 Retro frame Helm of the Host PLST DOM-217 $8 The List Helm of the Host PDOM 217p $12 - 18 Promo Pack Helm of the Host DOM 217 $7 - 19 Helm of the Host PDOM 217s $30 Prerelease