This only applies if the Invaders are all being removed as part of a single action (e.g., in
Inspire a Release of Stolen Lands or
Wavering Resolve). If "each player" is removing Invaders (e.g.,
Seek Safety,
Belief Takes Root,
Depart the Dangerous Land), then that's one action per player – the totals can't be combined.
Tags: Health, Inspire the Release of Stolen Lands, Wavering Resolve, Seek Safety, 2 more...