If Phantoon is defeated, start at least 2 tiles from the water line, and stutter just before entering it in order to shinecharge in room.

Requires:

{
  "or": [
    "f_DefeatedPhantoon",
    {
      "canShineCharge": {
        "usedTiles": 20,
        "steepDownTiles": 3,
        "openEnd": 0
      }
    }
  ]
}
"canStutterWaterShineCharge"
"canShinechargeMovementComplex"
"canWalljump"
"HiJump"
"h_shinechargeMaxRunway"
{
  "shineChargeFrames": 95
}

Exit condition:

{
  "leaveShinecharged": {}
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

Dev note: Using the dry runway and leaving with shinecharged with more frames would require canRiskPermanentLossOfAccess.