Fissure is a damaging Ground-type move that faints the target if it hits. The accuracy of the move rises the higher the user's level is compared to the target's (with the formula (User's Level-Opponent's Level)+30), and will fail if the target is a higher level than the user. Fissure always hits a digging Pokémon if it would normally be possible to hit the target. Accuracy and evasion modifiers do not affect Fissure's accuracy, and No Guard has no effect on a user of Fissure.
The OHKO Clause battle rule can prohibit Pokémon with Fissure.