Represented by the basilisk’s eye, the Warning Guild of House Medani brokers the services of bodyguards and inquisitives. Medani advisors specialize in risk assessment and management, protecting clients from both physical and social threats. While Medani overlaps with the inquisitives of House Tharashk and the bodyguards of House Deneith, the Warning Guild specializes in subtle threats and complex mysteries. Baron Trelib manages the guild's affairs from the Tower of Inquisition in Wroat, where the house also interrogates prisoners for King Boranel of Breland.
The members of House Medani are half-elves with deep roots in Breland. Medani has little interest in the power struggles that sometimes break out between the other dragonmarked houses. Many Medani heirs are more interested in helping their communities than in raw profit, and Medani heirs often work with local law enforcement or help those who can't afford their services.
Abilities
If your character has the Mark of Detection, the following traits replace the character's racial traits (including subracial) in the Player's Handbook, aside from age, alignment, size, and speed.
Ability Score Increase: Your Wisdom score increases by 2, and one other ability score of your choice increases by 1.
Deductive Intuition: When you make an Intelligence (Investigation) or a Wisdom (Insight) check, you can roll a d4 and add the number rolled to the ability check.
Magical Detection: You can cast the Detect Magic and Detect Poison and Disease spells with this trait. Starting at 3rd level, you can also cast the See Invisibility spell with it.
Once you cast any of these spells with this trait, you can't cast that spell with it again until you finish a long rest. Intelligence is your spellcasting ability for these spells, and you don't require material components for them.
Spells of the Mark: If you have the Spellcasting or the Pact Magic class feature, the spells on the Mark of Detection Spells table are added to the spell list of your spellcasting class. These spells are always prepared, as long as you have spells slots available in the corresponding level, and do not count against the number of spells you can prepare.