Requires:

"canDoubleXModeBlueSuit",
{"or": [
  {"thornHits": {
    "mul": [
      {"add": ["n_thornXModeAttempts", 2]},
      "n_thornXModeAttempts"
    ]
  }},
  {"and": [
    "canXModeMovement",
    {"thornHits": {
      "mul": [
        {"add": ["n_thornXModeAttempts", 1]},
        "n_thornXModeAttempts"
      ]
    }}
  ]}
]}

Dev note: This covers the most common case of thorn double X-mode bluesuit, where a minimum of 2 thorn hits need to be taken; this relies on being able to bounce before entering the thorns for both X-modes. With canXModeMovement, it also relies on timing Samus' i-frames to avoid an additional thorn hit after the first X-mode is released.