Whenever you gain life, target opponent loses that much life. When Enduring Tenacity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)
NM-Mint - $3.50
Lightly Played - $3.30
Moderately Played - $3.20
Heavily Played - $2.80
Damaged - $2.30
NM-Mint Non English - $3.50
Lightly Played Non English - $3.30
Moderately Played Non English - $3.20
Heavily Played Non English - $2.80
Damaged Non English - $2.30
Foil Prices
NM-Mint Foil - $6.70
Lightly Played Foil - $6.30
Moderately Played Foil - $6.00
Heavily Played Foil - $5.30
Damaged Foil - $4.30
NM-Mint Foil Non English - $6.70
Lightly Played Foil Non English - $6.30
Moderately Played Foil Non English - $6.00
Heavily Played Foil Non English - $5.30
Damaged Foil Non English - $4.30