You have a knack for telling when something's off. You have advantage on Perception and Investigation checks for noticing abnormal noises, details, smells, and the like, such as distant and quiet noises and speech, false walls and hidden doors, the faint odor of alchemical remnants and so on. If you succeed on any of these checks, you begin to feel dread if there is a threat, or a "pull" toward areas with clues, as if you have a "gut feeling" about some danger or something important. At 3rd Tier, your advantage extends to all Perception And Investigation checks.
At Tier 1, 3, 5, and 7 you choose two Intelligence or Wisdom-based skills. As an alternative, you could choose one intelligence-based skill and one set of tool that you're proficient in. Your proficiency bonus is doubled for any ability check you make that uses those chosen skills/tools proficiencies. These proficiecies stack rather than grow exponentially, with a maximum of a +25 modifier.
At Tier 10, You choose two intelligence based skills, an intelligence based skill and tinker tools, or tinker tools and any other tool you have proficiency in. You may now add double your modifier for those skills/tools. Additionally, you can also stow and draw a weapon or object as a bonus action.
Your experimentation has allowed you to create some pretty cool things. Gain access to crafting one new item for each tier. During a long rest you may craft one usage of a item, drug, or compound.