Endless Destruction is an attack used by Souless from Shadow 5. First, Souless creates a Black Hole and forces the opponent into it. Then, he closes the hole at the enemy's feet until it's tight. Next, he slowly lifts the hole up to the opponent's neck. Finally, he slowly clenches his fist 5 times which makes the hole explode 5 times, and the entire attack starts over 3 more times, being more painful than the last time, inflicting a deadly amount of damage.
This attack was first used against Naruto (Future Hokage) in the 3rd episode of The Ultimate Future. Souless intended to do the full attack, but Souless had gotten cocky and Naruto had escaped before he could finish the attack. So far, that was the only time the attack was seen.