Mine that I can think of?
Thousand hand buddha and perfect susano'o: perfect defenses that could destroy entire armies with ease
Flying Thunder God and Kamui: combination of traveling through dimensions and getting from one spot to another is almost impossible to counter
Hashi's level mokuton and Falling meteorite jutsu: Mokuton can create huge shield and can split the meteor to avoid hitting you and killing those around you.
Shadow Clones and Flying Thunder God: Getting around and getting past an enemy's defense
Senjutsu and Rinnegan: Being able to sense and predict a person's movements and is the perfect balance of physical and mental abilities
Shisui's KA and multiple Shadow clones: with many eyes on an opponent it's difficult to avoid getting trapped in the genjutsu
Thousand hand buddha and perfect susano'o: perfect defenses that could destroy entire armies with ease
Flying Thunder God and Kamui: combination of traveling through dimensions and getting from one spot to another is almost impossible to counter
Hashi's level mokuton and Falling meteorite jutsu: Mokuton can create huge shield and can split the meteor to avoid hitting you and killing those around you.
Shadow Clones and Flying Thunder God: Getting around and getting past an enemy's defense
Senjutsu and Rinnegan: Being able to sense and predict a person's movements and is the perfect balance of physical and mental abilities
Shisui's KA and multiple Shadow clones: with many eyes on an opponent it's difficult to avoid getting trapped in the genjutsu