The Slip Touch attack will slowly reduce your HP.
The Darkside is an enemy in Final Fantasy VI. It appears in the Narshe Mines in the checkpoint room if the player fails to follow the light properly. Although the player fights this enemy, it has no in-game Bestiary entry in the Gameboy Advance version.
1st Turn: Attack (66%) or Nothing (33%)
2nd Turn: Attack (66%) or Sapping Touch (33%)