- Found in the swamp of Farron Keep. Four of them guard the cave that contains the Golden Scroll.
- Several Basilisks will ambush you if you move towards the chest containing the Old Cell Key in Irithyll Dungeon.
- Right before Knight Slayer Tsorig's location in Smouldering Lake.
- They inflate to massive proportions and expel a cloud of petrifying gas that inflicts Curse buildup.
- Leap into the air, followed by spitting a cloud of petryfing gas.
- Very fast.
- The giant bulging balls on their heads are NOT their real eyes. Their eyes look like nostrils and are very small.