Idoneth Artefacts

Once per battle, at the start of your hero phase,
you can say that the bearer will use the
Rune of the Surging Tide. If you do so, say
whether the rune will be used to create a
stream or a riptide. If a stream is created,
add 1" to the Move characteristic of friendly
IDONETH DEEPKIN units until your next
hero phase. If a riptide is created, subtract
1" from the Move characteristic of enemy
units until your next hero phase.