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.)
Near Mint Foil - £24.00
Lightly Played Foil - £20.40
Moderately Played Foil - £16.80
Heavily Played Foil - £12.00
Damaged Foil - £7.20
Near Mint Foil Non English - £24.00
Lightly Played Foil Non English - £20.40
Moderately Played Foil Non English - £16.80
Heavily Played Foil Non English - £12.00
Damaged Foil Non English - £7.20