(Pending — the weather-control homies pay off as combat weapons / a crew-exploited lever forward in the Whole Cake Island arc; payoff_chapter left blank until on-page resolution.)
Earliest known caller
(Unrecorded.)
Why this matters
A textbook chekhov-explicit install: Oda has a character itemize an Emperor’s power-set (animate weather-homies, a vengeance-storm) before any combat deploys it. Cross-link Prometheus, Zeus, Homies, Big Mom.