「Necro_Fang」は FontVibe AI で作成したクリスタルの文字エフェクトです。純粋な宝石クリスタルから削り出した、ダイヤモンドカットのファセット面。鮮やかな虹色のプリズム分光と高級感あふれる輝きが特徴です。下面には集光模様が映し出されます。

carved from flawless gemstone crystal — each letterform cut with precision faceted geometry following brilliant-cut and emerald-cut diamond principles. Table facet, crown facets, girdle edge, pavilion facets all precisely rendered. Optically pure material: Brilliance (white light return), Fire (rainbow spectral dispersion), Scintillation (extreme facet contrast sparkle). Internal caustic corridors visible. Six-point sparkle flares at letter apexes. Maximum optical drama — every letter a dazzling cut precious gemstone. A square luxury dark-fantasy title image, composed like an artifact sealed inside a jeweler’s vault. Set the exact text “Necro_Fang” on one dominant line across the center, large and immediately legible, with the underscore clearly preserved as part of the wording. Give the lettering generous breathing room against a deep midnight navy fading to black, and let it occupy most of the canvas width without touching the edges. Behind it, a faint, symmetrical shadow of a gothic stone arch and two barely visible obsidian fangs suggest a hidden crypt without competing with the title. A hard overhead pinpoint spotlight catches the upper facets, while deep blue-violet shadows define the lower planes. Sharp six-point star flares sparkle at selected letter apexes; restrained prismatic rainbow beams radiate from a few crown facets, and thin internal caustic corridors glimmer through the crystal. Keep the background almost entirely dark, with only a low haze of blue light near the title and subtle reflected glints below it. The result should feel precise, ominous, and precious: a single striking gemstone title, cleanly separated from its setting, with no other words, symbols, or decorative lettering.