pokemon trading card game sword and shield astral radiance & Booster Box Shield—Astral Radiance booster packs Pokemon Trading Card Game Sword

just be warned that its possible the lands gets reprinted, maybe as soon as Commander Legends 2

Casting Cost: Card Text: (Gain the next level as a sorcery to add its ability.) When Hunter's Talent enters, target creature you control deals damage equal to its power to target creature you don't control

Though that combo isn't quick enough to make Enduring Tenacity more than a bit player in Standard, it's the kind of card that life-gain and life-drain decks in EDH love to play with, as it's effectively a second copy of Sanguine Bond (albeit cheaper and slightly more vulnerable to exile-based removal)

In a typical two-player game, when the combat phase arrives, the defending player is always your opponent (or one of your opponents in a multiplayer setting), and you cant declare yourself as a target of your own creatures