Synergistic

[Magaret]

A phenomenon in which two [influences] [come together] to produce an effect greater than predicted.

When two individuals with their own complementary skills interact to form a special [everlasting] bond.

[Renato]

causing or involving synergy (= the combined power of working together that is greater than the power achieved by working separately) :

[Justin Bieber]

Relating to the interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their separate effects.