Wyrdwood pre-playtest thoughts/questions/nagging

Rules questions/clarifications
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1. How does an Attribute get to -1?
2. Can you not cast with a weapon in hand unless you're an Alcyan Cadet with a ceremonial weapon (or someone with a similar benefit)?
3. Is a hood a hat?
4. 'Rule 3: A specific spell can be cast only once per round, even if you have enough Initiative to use it multiple
times.' How's this work with something like Arsenal of Blades, which has the initial effect, a secondary attack, an Enchanted Action, and the possibility to be used as an interrupt?
5. What sort of actions are invocations that aren't specifically called out as Standard or Rituals?
6. Are the Spectral Blades of Arsenal of Blades considered a weapon attack?
7. Can you only perform one action per phase? Like if you used three Fast Actions, one would come out in the Fast Phase, one in the Standard Phase, and one in the Slow Phase? I thought that's how it worked, but then I saw Aim, so...
8. Threaten effects seem to be fairly rare on tradition spells. Is the intention to mainly get it through Challenger or Outmaneuver?

Comments and incomplete stuff:
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1. Need Spirit Curses for the Cursed background.
2. The Invocation of Communion doesn't seem to have a time set for its Ritual usage.
3. Incarnate needs Spirit Aspects.