There is enough time to IBJ to the top door before Draygon appears.

Entrance condition:

"comeInWithGMode": {
  "mode": "any",
  "morphed": true,
  "mobility": "mobile"
}

Requires:

"Gravity",
{"or": [
  "h_artificialMorphLongIBJ",
  {"and": [
    "HiJump",
    "h_artificialMorphJumpIntoIBJ"
  ]}
]}