What do perfect Poison Facets trade for?

I'm looking to get at least 3 of these.

I want to know what sort of items I'll need to be able to bargain with before I go hunting for trades.|||High rune for Lvl

1�-2 high runes for Die

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You'll have a hard time finding people who will trade for items. Unless they are runewords/godly.|||slightly cheaper on ladder