Thelfar Esgawalth

When Thelfar Esgawalth enters the battlefield, search your library for a Dark Elf creature card, reveal it and put it into your hand. Then shuffle your library.
{b}{b}, {t}: Each opponent loses life equal to the amount of elves you control. You gain life equal to the life lost this way.
{x}{b}, {t}: Target creature gets -X/-X until end of turn.