12

Shinecharging up the stairs gives a longer effective runway than shinecharging down them. A frozen Atomic (or Covern) can be used for more runway.

Requires:

{
  "or": [
    {
      "canShineCharge": {
        "usedTiles": 11,
        "steepUpTiles": 3,
        "openEnd": 2
      }
    },
    {
      "and": [
        "h_frozenEnemyRunway",
        {
          "or": [
            "f_DefeatedPhantoon",
            {
              "and": [
                "SpaceJump",
                "h_trickyFrozenEnemyRunway"
              ]
            }
          ]
        },
        {
          "canShineCharge": {
            "usedTiles": 13,
            "steepUpTiles": 3,
            "openEnd": 1
          }
        }
      ]
    }
  ]
}
"canTemporaryBlue"
"canLateralMidAirMorph"

Clears obstacles: C

Dev note: There is 1/2 a unusable tile in this runway.