Dual Implement + Staff of Ruin? 樓上讀過勘誤了嗎 
I see...
--- From AP Page.125---
DUAL IMPLEMENT SPELLCASTER
Prerequisite: Dex 13, any arcane class
Benefit: When you use an arcane attack power
and you are wielding a magic implement in each
hand,
you can add the offhand implement's enhancement
bonus to damage rolls.
Both of your implements must be usable with this
power, and you must be capable of wielding both
implements, to gain this benefit.
---From AV Update 2010.05 ---
Staff of Ruin
Page 107: Replace the item’s property with the following
text: “Whenever you make an attack using this staff, you gain an item bonus to the attack’s damage rolls equal to the staff’s enhancement bonus.”
This change clarifies that the staff’s property isn’t intended to work with the Dual Implement Spellcaster feat.
Staff of Ruin Level 3+
This gnarled, jagged staff fits the hand of any wizard seeking to devastate her opponent.
Lvl 3 +1 680 gp Lvl 18 +4 85,000 gp
Lvl 8 +2 3,400 gp Lvl 23 +5 425,000 gp
Lvl 13 +3 17,000 gp Lvl 28 +6 2,125,000 gp
Implement (Staff)
Enhancement: Attack rolls and damage rolls
Critical: +1d10 damage per plus
Property: Whenever you make an attack using this staff, you gain an
item bonus to the attack’s damage rolls equal to the staff’s enhancement bonus.
---
So,
Staff of fightning讓staff變雙頭武器->用staff視為雙手各持一把武器
=> +X (主手Implement)
+X (副手Implement)
+X (Staff of Ruin Item Bonus)
=> 共+3X
---
沒Update前好相是+4X (主副手都提供Staff of Ruin的Damage Bonus)?
還是還有我沒看過的Update or 我還有那裡會錯意
