Agents of STRIKE
The Valkyrior are Odin’s black ops. The “Choosers of the Fallen”, they act as Asgard’s assassins and spies, deployed to Earth and elsewhere in the universe to do the things that Asgard considers “dishonorable”.
They are extremely dangerous and should be avoided at all costs. While all Asgardians are dangerous and powerful and essentially godlike invdividually, Valkyrior are worse because they lack the warrior’s honor and scruples that at least make Asgardians reliable and predictable. Valkyrior are sneaky, underhanded, and devious. When they’re on our side, they’re fantastic allies. When they are not, they are the worst enemies imaginable.