Alphascape V1.0 (Savage)

English

■─ Fire phase ────┬■─Earthquake ───
　(Spread, stacks)　　　│　(Stack positions)
 　               MT/D1　　　  │　H1　 MT 　ST 　H2
　H1/D3　ボス　H2/D4 │　D3　 D1　 D2 　D4
 　                ST/D2　　　   │
■─ Dark crystal ────────────────
 　               MT
 　               D1　　　※Tanks + healers face out→
       H1 D3 ◎ D4 H2　hit your DPS with water
 　               D2
 　               ST

Japanese

■─ 炎フェーズ ─────┬■─ 地震フェーズ ───
　( 頭割り、散開 )　　　　│　( 頭割り )
 　               MT/D1　　　  │　H1　 MT 　ST 　H2
　H1/D3　ボス　H2/D4 │　D3　 D1　 D2 　D4
 　                ST/D2　　　   │
■─ 黒水晶 ───────────────────
 　               MT
 　               D1　　　　※タンクヒラは外周向き→
       H1 D3 ◎ D4 H2　　水をDPSに当てる
 　               D2
 　               ST

Markers

The ABCD markers mark the cardinal positions, and where the players with Dynamic Fluid should stand to hit their partners with the donut AoE during the Dark Crystal phase.
The 1 and 2 markers are where the party should stack for the donut AoEs during the Tsunami phase when the boss is casting Damning Edict.

XIVLauncher WaymarkPresetPlugin positions

{
  "Name":"O9S",
  "MapID":591,
  "A":{"X":100.0,"Y":0.0,"Z":88.0,"ID":0,"Active":true},
  "B":{"X":112.0,"Y":0.0,"Z":100.0,"ID":1,"Active":true},
  "C":{"X":100.0,"Y":0.0,"Z":112.0,"ID":2,"Active":true},
  "D":{"X":88.0,"Y":0.0,"Z":100.0,"ID":3,"Active":true},
  "One":{"X":100.0,"Y":0.0,"Z":84.0,"ID":4,"Active":true},
  "Two":{"X":100.0,"Y":0.0,"Z":116.0,"ID":5,"Active":true},
  "Three":{"X":0.0,"Y":0.0,"Z":0.0,"ID":6,"Active":false},
  "Four":{"X":0.0,"Y":0.0,"Z":0.0,"ID":7,"Active":false}
}

Timeline

(Credit: u/Syldris)