Spark horizontally and fall to the bottom left door. Note that it is possible to spark with less Energy while avoiding the Skultera if starting with a precise amount of Energy: When sparking from the left side of the platform, spark with between 88 and 103 Energy while suitless.

Entrance condition:

"comeInShinecharged": {},
"comesThroughToilet": "any"

Requires:

{"or": [
  "Gravity",
  "HiJump",
  "canSpringBallJumpMidAir",
  "canPrepareForNextRoom"
]},
"canHorizontalShinespark",
{"or": [
  {"and": [
    "Gravity",
    {"shineChargeFrames": 15},
    {"shinespark": {"frames": 73, "excessFrames": 19}}
  ]},
  {"and": [
    "canSuitlessMaridia",
    {"shineChargeFrames": 25},
    {"shinespark": {"frames": 92, "excessFrames": 12}}
  ]},
  {"and": [
    "canSuitlessMaridia",
    "canControlShinesparkEnd",
    {"shineChargeFrames": 25},
    {"shinespark": {"frames": 92, "excessFrames": 33}}
  ]}
]}

Dev note: The variant with canControlShinesparkEnd could end at 5, but it would require other items to go to 4, which would no longer make this useful.