If Rumble Scrapper is equipped with a Skyfall of Areion, does he play 1 or 2 Mech unit tokens when he conquers?

Rumble, Scrapper equipped with Skyfall of Areion will play 1 Mech unit token when he conquers a battlefield.

Reasoning:

1. Trigger Mechanics: Skyfall of Areion modifies the abilities of the equipped unit so that its "When I hold..." effects are also treated as "When I conquer..." effects (and vice versa). This modification allows the ability to be eligible to trigger on either event.
2. Single Event, Single Trigger: When Rumble conquers a battlefield, he performs a single "Conquer" game action. This event satisfies the condition for his "When I hold..." ability (because Skyfall has expanded that ability to also trigger on "Conquer"). Because it is a single event, the ability triggers exactly once.
3. Clarification on FAQ #7492: The reason Trinity Force triggers twice in that specific scenario is not because the "Hold" event itself triggers the ability twice. Rather, it triggers once from the "Hold" event, and then triggers a second time because Reckoner's Arena has a separate ability that explicitly activates conquer effects. Without an additional effect like Reckoner's Arena to re-activate or duplicate the trigger, a single "Conquer" event will only cause the modified ability to trigger once.

In summary, Skyfall of Areion expands the conditions under which the ability can trigger, but it does not cause the ability to trigger multiple times from a single event.

Note: I could not fully verify this ruling against the retrieved rules.