Best item

[Edratman2]

Endoperez said:
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Every quickness item you can forge would be Boots of Quickness, then? Because, you know, quickness from spells and items doesn't stack with itself. It stacks with heroic quickness if you get a non-pretender four-armed guy to the Hall of Fame and get lucky, but that's about it as far as Quickness stacks.

But the problem is that I did not know quickness doesn't stack. Whoops.

Which brings the question, what doesn't stack?