Mindstars are one-handed weapons with many unusual properties. Any character can wield a mindstar (or two), but making the most of them requires knowledge of the Mindstar Mastery talents. Summoners and Oozemancers begin with knowledge of this tree. Other classes may get it by purchasing the tree at the gem store in Zigur. It costs 100 gold to buy it locked, 500 gold to buy it unlocked at mastery 1.0, and an additional 750 gold to increase the mastery by 0.2. (You don't need to buy it locked before you buy it unlocked.) Characters may also learn this tree by betraying an Alchemist escortee to the Ziguranth.
Unlike daggers, mindstars wielded in the "off" hand do not incur a damage penalty. Mindstars have a base 50% Willpower + 30% Cunning damage modifier. Mindstars use Willpower instead of Dexterity for calculating Accuracy.
The Psiblades talent will multiply the mindstar's base damage modifier by a factor of 1.4 to 1.9 or so (depending on talent level and mastery). With 5 points in Psiblades at 1.2 mastery, a mindstar will have damage multipliers of 93.5% Willpower + 56.1% Cunning. (Compare to 100% Strength for most one-handed weapons, and remember that mindstars can be dual-wielded with no penalty.)
List of Artifact Mindstars
List of Sets
|Name||Form set with||Set bonus|
|Harmonious||Can be used to form a set with Caller's, Summoner's or Wyrm's||Will harmonize with the other mindstar, sharing its set bonus (but at its own tier).|
|Resonating||Can be used to form a set with Dreamer's, Epiphanous, Hateful, or Wrathful||Will resonate with the other mindstar, sharing its set bonus (but at its own tier).|
|Wyrm's||Can be used to form a set with Flames, Sand, Storm, or Frost||Set bonus: +tier*10% blindness and stun/freeze immunity|
|Flames||Not initially part of a set||Set bonus: +tier% global speed|
|Frost||Not initially part of a set||Set bonus: +tier*3 armor|
|Sand||Not initially part of a set||Set bonus: +tier*2% to all saves|
|Storm||Not initially part of a set||Set bonus: +tier to all stats|
|Venom||Not initially part of a set||Set bonus: +tier*0.5 life regeneration|
|Caller's||Set with Summoner's||Set bonus: +tier health regeneration to nature summons (needs confirmation)|
|Summoner's||Set with Caller's||Set bonus: +1 simultaneous nature summon|
|Dreamer's||Set with Epiphanous||Set bonus: +tier*10% psi regeneration|
|Epiphanous||Set with Dreamer's||Set bonus: +tier psi on critical mind attack|
|Mitotic||Use it to split one Mitotic mindstar into a matched set.||Set bonus (A): tier*10 acid blind burst on critical, Set bonus (B): tier*10 slime burst on critical|
|Hateful||Set with Wrathful||Set bonus: +tier*2 mindpower|
|Wrathful||Set with Hateful||Set bonus: +tier*2 max Hate to Wrathful|
Note that the Resonating, Harmonious, and Wyrm's mindstars are a little odd in that they don't form a set automatically. Wield the set-forming mindstar in one hand, a mindstar it can form a set with in the other, and use the set-forming mindstar. The two mindstars will become a matching set. They can be reactivated later to form a different set. (In some cases, like a Wyrm's paired by Harmonious and then paired to Flames, both sets will remain valid.)
Example set: http://i.imgur.com/qr3MV.png (Note that while the curses and set-forming ability have disappeared from this view, they are still present on the items.)
If you're not interested in dual-wielding mindstars, the set-forming ability of mindstars can be safely ignored.