Movement through blast markers reduces speed by a
total of 5cm, regardless of how many are moved
through in each movement phase. This affects each
separate movement phase for Eldar vessels. Ships
that do not have shields, such as Eldar or vessels with
a Shields Collapsed critical, only need to test once
against a D6 for damage regardless of how many
blast markers they encounter in their movement.
Eldar however have to do this one time for each of
their two movements per turn if they encounter blast
markers in both their movements.