Talek ,the Blade Holder

When Talek ,the Blade Holder enters the battlefield, you may pay {x} life.
If you do, search your library for an equipment
card with converted mana cost {x} or less and
put it into your hand. Then shuffle your library.
{1}{b}{b}, Sacrifice a creature: Regenerate target artifact.
"Go ahead... take the sword. It is yours."