Type of Feat: General (Metamagic)
Prerequisite: Ability to cast 2nd-level Arcane or Divine spells, 4 ranks in Spellcraft
Specifics: The character has become acquainted with the intricacies of basic ritual spells and the preparation of symbols, circles and associated preparations and may inscribe such a ritual symbol on the ground once per rest; the circle in question does not fade after resting however. For every 4 ranks in Spellcraft the character becomes more adept at preparing these ritual circles and may inscribe more complicated symbols upon the ground.
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So; a feat that grants absolutely no mechanical benefits but a whole slew of roleplay options.
As above, once per rest the PC can once per rest set down a placeable magical circle with a modifiable name/description not unlike player-made signs from carpentry. As the circles do not disappear after resting, that means that players can spend multiple hours preparing particularly complex arrays of multiple ritual symbols and circles.
Every four ranks, give more symbols, magic circles and similar options available to the PC in question. Depending on the amount of assets available, maybe only give 1-2 per four ranks and as the PC scales up give them successively more showy placeables to reward their efforts; ideally if sufficient assets are available it would be preferable to give one each of a good/evil/neutral appearance placeable magic symbol and/or circle.
Some design concerns I can see are that players should be allowed to pick up and move their circles for fine adjustments, but that could lead to circumvention of the resting/drawing system above. As a solution to that, having the produced circle remain on the ground after resting but only allowing the most recent circle to be moved would perhaps be an option, while any retained instances in the inventory are deleted forcibly on rest. In addition, I would consider only permitting the feat to be taken by the base classes Bard, Sorcerer, Wizard, Cleric and Druid as Paladins and Rangers seem unfitting thematically for performing in-depth rituals, though the cross-class skill point cost might be a severe enough cost to prohibit them in the first place from going deeply into this feat.
Being that we've had quite a long time to see how the community uses it's access to placeable objects through both merchant sold items like carpets and cookpots, readily available campfires and investiture-heavy trade rewards from carpentry I believe that the community at large would benefit from such an addition without being a detriment, provides a valid feat option for people wanting to pursue more roleplay oriented goals without concern for mechanical gains and feels like something we largely lack at current.
Thoughts, critiques, suggestions, etc.