Choosing to sacrifice Presence this way isn't generally advantageous, but can be used to set up for a Power that uses destroyed Presence, like "Blazing Renewal." Some Spirits also get benefits when their Presence is destroyed or would be destroyed, like Volcano Looming High dealing Damage via its "Collapse in a Blast of Lava and Steam" special rule, making that sacrifice situationally useful even with no future plans for that Presence. And in particularly rare cases, Spirits can even use this to disable a normally-beneficial effect granted by their Presence.
If the Event only applies to specific boards, you can't sacrifice Presence on other boards. For example, "The Center Crumbles" ("On Each Board with Invaders: Add 1 Blight to an Inland Land") doesn't even
attempt to do anything on boards without Invaders, so Presence can't be destroyed to prevent the nonexistent Event Action there. On the other hand, Spirits
can sacrifice Presence to prevent that Event on a board with Invaders but with no Inland lands (e.g., because "Weave Together the Fabric of Place" has merged all lands on that board into Coastal lands), since the Event still happens on that board despite it being unable to add Blight.
Tags: On Each Board, Presence, Destroyed Presence, The Center Crumbles, 32 more...
