Artificer Knowledge


 * Scrolls: Artificer level 1. Grants a +2 to UMD checks related to scroll use, and all scrolls used by the Artificer have their caster levels increased by 1. This caster level bonus increases by 1 at Artificer levels 4, 7, 10, and 13, and is capped by the Artificer's Intelligence Bonus.
 * The chance to activate does actually increase as it's supposed to. What actually happens is the UMD requirement is lowered by 2. The feat then erroneously counts the knowledge feat for UMD bonus (creating a false bonus of 4) that shows up on the tooltip but doesn't actually happen when using the item. The best thing to do is keep track of your UMD and measure it against the item's stated UMD requirement


 * Potions: Artificer OR Alchemist level 2. Grants a +2 to UMD checks related to potion use, if any, and all potions used by the Artificer/Alchemist have their caster levels increased by 1. This caster level bonus increases by 1 at Artificer/Alchemist levels 5, 8, 11, and 14, and is capped by the Artificer/Alchemist's Intelligence Bonus. This feat also gives damage bonuses to certain infusions.


 * This feat actually grants +2 to caster level and maximum caster level of curative infusions. Effect removed in Update 45.


 * Wands: Artificer Level 3. Grants a +2 to UMD checks related to wand use, and all wands used by the Artificer have their caster levels increased by 1. This caster level bonus increases by 1 at Artificer levels 6, 9, 12, and 15, and is capped by the Artificer's Intelligence Bonus.
 * Read amendment above.


 * Arms and Armor: Artificer Level 5. Grants a +2 to UMD checks related to weapons, armor, and staves. Any activated abilities on weapons and armor ("clickies") used by the Artificer are cast at a +1 caster level. This caster level bonus increases by 1 at Artificer levels 8, 11, 14, and 17, and is capped by the Artificer's Intelligence Bonus.
 * Wondrous Items: Artificer Level 7. Grants a +2 to UMD checks related to clothing, jewelry, and trinkets. Any activated abilities on these items ("clickies") used by the Artificer are cast at a +1 caster level. This caster level bonus increases by 1 at Artificer levels 10, 13, 16, and 19, and is capped by the Artificer's Intelligence Bonus.