Starting at level 10, you would be able to make a Thayan Spell Tattoo using the "Uncommon Wondrous Item that isn't cursed" option. However, in the item's text it states that it can't be crafted in the same way as other magic items, so your DM may rule that it is exempt from being craftable by Artificers. If they do allow the item, you would be able to pick any spell of 3rd level of lower, including from the more exclusive class spell lists (Paladin, Ranger, Warlock).
Does Replicate Magic Item allow an artificer to replicate a Thayan spell tattoo and put any spell up tl lvl3 into it?
If yes, where do rules or someone at wotc confirm this?
Starting at level 10, you would be able to make a Thayan Spell Tattoo using the "Uncommon Wondrous Item that isn't cursed" option. However, in the item's text it states that it can't be crafted in the same way as other magic items, so your DM may rule that it is exempt from being craftable by Artificers. If they do allow the item, you would be able to pick any spell of 3rd level of lower, including from the more exclusive class spell lists (Paladin, Ranger, Warlock).
A renown score of 50 with the red wizards? My artificer has killed a bunch of red wizards...
Which is the opposite of what you would want to do to gain Renown.