Will Skyfall trigger Candlelit Sanctum on holding?
No, Skyfall of Areion will not cause The Candlelit Sanctum to trigger on a Hold action.
Why this interaction does not work:
- Skyfall's Scope: According to its card text and related FAQs (e.g., FAQ #288), Skyfall of Areion only modifies the triggered abilities of the equipped unit. It does not modify the abilities of the battlefield.
- Candlelit Sanctum's Ability: The battlefield's ability specifically states: "When you conquer here..." Because Skyfall does not grant the Sanctum the ability to recognize "Hold" as "Conquer," the battlefield's trigger condition remains tied exclusively to the "Conquer" action.
Summary
- Skyfall of Areion only affects the unit it is attached to (making that unit's "When I hold" and "When I conquer" effects interchangeable).
- The Candlelit Sanctum is a battlefield and is not affected by equipment attached to units. It will only trigger when a player performs a "Conquer" action at that battlefield.