I think you mean Bitter Blade in Roblox, but that move is not a standard Roblox move. It’s a Pokémon move used by Ceruledge in games like Pokémon Scarlet/Violet, where Bitter Blade restores HP equal to up to half the damage dealt.

What this means

  • If you saw “Bitter Blade” in a Roblox game, it’s likely from a fan game, mod, or a game inspired by Pokémon , not Roblox itself.
  • In Pokémon contexts, Bitter Blade is tied to Ceruledge as its signature move.

How to get it

  • In a Pokémon-style game, you usually get Bitter Blade by leveling Ceruledge or using a move relearner , depending on the game’s rules.
  • If you’re playing a Roblox experience, the exact method depends on that specific game’s systems, since Roblox games can add custom moves and unlock rules.

Best next step

Tell me the exact Roblox game name where you saw Bitter Blade, and I can narrow it down to the unlock method for that game.