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 - $3.10
Lightly Played - $2.90
Moderately Played - $2.80
Heavily Played - $2.50
Damaged - $2.00
NM-Mint Non English - $3.10
Lightly Played Non English - $2.90
Moderately Played Non English - $2.80
Heavily Played Non English - $2.50
Damaged Non English - $2.00
Foil Prices
NM-Mint Foil - $4.40
Lightly Played Foil - $4.10
Moderately Played Foil - $3.90
Heavily Played Foil - $3.50
Damaged Foil - $2.90
NM-Mint Foil Non English - $4.40
Lightly Played Foil Non English - $4.10
Moderately Played Foil Non English - $3.90
Heavily Played Foil Non English - $3.50
Damaged Foil Non English - $2.90