Can I pick any six skills in Azeroth Survivors?
No. A level-up deals three cards from everything still on offer, and the most likely of them is a rank for a skill you already hold. Use the calculator as a priority order: say what you would take if the run offered it.
What does the clear score measure?
Damage per second for the skills in the build, each at its own rank, against one enemy per 16 square yards and no more than 8 at once. It counts damage over time and the extra targets an area skill reaches. Control, the F skill, talents, and gear stay out.
Why does my build score below the class best six?
Because the best six is the highest-damage set at rank 1, and it is not the only thing a run needs. Health, speed, regeneration, and experience each cost a slot that the clear score would rather spend on damage.
Do passives change the clear score?
Blessing of Might, Arcane Intellect, Amplify Magic, Blessing of Kings do, because damage, recharge, area radius, and critical hits go straight into it. The other six change the build's health, speed, regeneration, armor, pickup range, or experience, and the numbers beside the skills show them.
Does the calculator match my run exactly?
No. It adds up one set of values. Movement, pack sizes, boss timing, talents, and gear are outside it, so read it as what the source data says about a build, not as what a run will do.
Where does a shared build live?
In the link and nowhere else. There is no account and no copy on the server, so the address bar is the only place the build is kept. Copy it to keep the build, or to send it to someone.