About the keysword

[Orange]

I have some question about it
1-When trunks holds the keysword , he gets all it's power, abilities and resistance, which includes resistance to all of Mechi's has and then some [correct me if I'm wrong] would this mean in a vs battle, if the user bonds with the key, would they get all the resistance of the opponents hax [with limitation ofcourse] or it's just a trait if the keysword that only resists mechi's hax.
2- Can his aura power null?
3- About the sealing/BFR/ limited causality thingie, "Erasing all of their actions and records across history": Does "across history" only refer to the past or all of time [aka past, present, future]. Why is it only limited causality , the description doesn't sound "limited". Since it worked on mechi and fuu [they have Acausulity type 4], shouldn't the limited causality thingie mension that it works on Acausuals type 4?. And also "Erasimg their records and presence" sounds like High tier 4-D Existence erasure + causualtiy manipulation no?

 

[Roun12]

1. It's just resistance to Mechikabura's powers since it was specifically made to defeat him.
2. No.
3. The Demon Realm had disappeared from the Scroll of Eternity so it was likely across all time. I think it's Limited because it's sort of a side effect of the sealing and the only thing it can do with its Causality Manipulation. It wouldn't hurt to mention it works on Type 4 Acausals but some people might see it as unnecessary.

 

[Orange]

Thank you-