Fire and Flood

Can you use the threshold effects of Innate Powers, even if you can't use the effects above them?
Yes, each line is evaluated independently, depending on the Elements you activate the power with.
(You are allowed to pretend you have fewer Elements than you actually have, but need to be consistent for the whole power.)
(Discussion elsewhere) (Discussion elsewhere) Tags: Elements, Sparking Aspect (Lightning's Swift Strike), Haven Aspect (River Surges in Sunlight), Foreboding Aspect (Shadows Flicker Like Flame), 54 more...

If you deal damage in multiple lands with a single instruction, does the damage happen simultaneously? Against Russia level 2+, if one of those lands is Isolated, can you attempt to Push an Isolated Explorer and thus destroy it?
Damage instructions are simultaneous in all the lands where they apply. Russia's Sense for Impending Disaster effect requires you to Push an Explorer if you can (and generate 1 Fear); you cannot pick an Isolated Explorer as the one to Push if you have another choice.
This applies to any effect that deals damage in multiple lands at once.
Tags: Damage, Action Modifiers, Bloodwrack Plague, Fire and Flood, 12 more...

How does Mists Shift and Flow interact with a Power targeting two lands?
You get to move 1 Presence for each of the two target lands. ("When targeting a land" applies twice.)
You don't check whether the targets are legal (for Range) until after both Presence have moved, so you could use the Presence movement to make a Sacred Site in a land where you'd had no Presence.
Tags: Targeting, Mists Shift and Flow (Shroud of Silent Mist), Shroud of Silent Mist, Fire and Flood, 0 more...