Prophecy T-Spin Double involves setting up a T-Spin Doubleoverhang in advance and then subsequently creating the T-Spin Double base through various methods. This technique, first developed by Tetris DS player TCM-WC, combines both the principles of T-Spin Double overhangs and T-Spin Double bases in a practical application.
The basic skimming method requires the player to first create an overhang near an open column facing a wall. The player would then skim, using different tetrominoes for different situations, in order to adjust the height of the base for the T-Spin Double.
The basic filling method requires the player to first create an overhang near an open column. The player would then place different tetrominoes depending on the situation to adjust the height of the base for the T-Spin Double.