Hey guys!

A short list with descriptions, screenshots of ninjas who can buff more teams, useful for modes like 3v3, bond arena, GNW. I didn't list any barrier ninjas but they can technically also buff everyone

- Black Zetsu 30% damage buff to Akatsuki units

- Konan 30% Atk/Nin to 9 Akatsuki units + a shield

- Pain [Six Paths Rinnengan] 10% Mystery Lifesteal to Akatsuki units + undodgeable mystery if both akatsuki and rinnengan

- Zetsu breakthrough Y+1 25% Defense and Resistance to Akatsuki units

- Pain [Chikushido] 40% Ninjutsu and 60% Resistance to all Rinnengan units

- Pain [Gakido] 60% Resistance and 30% Defense to all Rinnengan units

- Pain [Jigokudo] 60% Defense and 30% Resistance to all Rinnengan units

- Pain [Ningendo] 60% Combo Rate and 25% Critical Rate to all Rinnengan units

- Pain [Shurado] 40% Attack and 30% Critical Rate to all Rinnengan units

- Hashirama [First Hokage] 30% Ninjutsu to everyone

- Tobirama [Second Hokage] 30% Attack to everyone

- Hiruzen [Third Hokage] 40% Resistance to everyone

- Hiruzen [Edo Tensei] 30% Atk/Nin to any 9 units

- Minato [Fourth Hokage] 40% Resistance to everyone

- Sai [Suit] 60% Resistance to females

- Sasuke [Suit] 30% Atk/Nin to females

- Hiruzen [Hokage Successor] 15% Attack to Konoha units when they get hit (stackable)

- Killer Bee [Seven Swords Style] 30% Atk/Nin to 9 Jinchuriki units + a shield

- Sasori [Edo Tensei] 30% Atk/Nin to 9 Edo Tensei units + a shield

- Mangetsu dodge buff to all Hidden Mist units

- Mifune 30% (45% breakthrough) Atk/Nin to 9 Sword units

- Shikamaru [Chuunin] 100% Defense and Resistance 30% Crit Rate to 9 Hidden Jutsu users

- Shikamaru [Great Ninja War] 30% Atk/Nin to 9 Allied Shinobi ninjas