Misogi

Misogi  (禊, "Purifier") is one of Shin Akuma's Hyper Combos in Capcom vs. SNK 2 and SVC Chaos. It is also one of Akuma's Super Arts in Street Fighter X Tekken.

Capcom vs. SNK 2 / SVC Chaos
Akuma teleports above the opponent and charges down at them with a devastating strike to finish them off. The attack itself uses up the entire power bar, does a massive amount of damage even when blocked, and is also unparryable (and, in SvC Chaos, unblockable). At the same time, it is also a cross-up; the only method of avoiding this move is to use a teleport such as the Ashura Senku or Bison Warp.

Street Fighter X Tekken
The move is no longer indefensible, and is now animated differently: Akuma yells "Feel the pain!" and, if he successfully lands the Misogi, he then punches his opponent into the ground, and the massive force of the impact creates several cracks in the ground, which form the familiar ten kanji (天).

If the attack misses or the opponent blocks, Akuma will instead perform the Kongou Kokuretsuzan.

Akuma's Cross Art is the Tenma Shurettou, which is visually similar to the Misogi, although unlike in Capcom vs. SNK 2, the Tenma Shurettou isn't a special counter. While the execution remains the same, this move targets the spine of the opponent in a slicing motion.

Trivia

 * The Misogi's Street Fighter X Tekken animation is similar to Evil Ryu's end animation of the Messatsu-Goshoryu Ultra Combo from Super Street Fighter IV: Arcade Edition.
 * Akuma in his Oni form possesses the Sekisei Jiraiken which can be seen as a lesser version of the Misogi since it does not have the benefits of homing in on the opponent, being unblockable and does much lesser damage.
 * In Street Fighter X Tekken, Misogi can also be performed when Hyakkishu is fully charged, despite being a different direction command input.