In the Open Beta, there is no Turf War interaction with Chained Arkveld, but in the full release, it may absorb elemental power from other monsters during fights. If that happens, be prepared for a ...
The Blood Guard’s Chain Helmet is a Rare quality Mail helmet introduced in Phase 3 of Season of Discovery. This item is part of the level 50 Blood Guard’s Chain PvP set available only for Hunters.
You will need to unlock the Arkveld Optional Quest in Monster Hunter Wilds Beta in order to square up against MH Wilds' flagship monster.