I was designing some new feats, one called Ravencaller, the other Empath (I can already see the memes from it) and finally this one Oracle. I figured it may be the one you'll enjoy most, so here it is. With some very fun Mtg art.
Tea leaves, tarot cards, coffee remnants, these are all signs of fate which you've learned to read. To you, the future is not uncertain, merely hidden to the untrained eye. You gain the following features:
Your Intelligence, Wisdom or Charisma score increases by 1.
You learn the augury spell. You may cast it without expending a spell slot. Once you cast either of the spell in this way, you can’t cast it in this way again until you finish a long rest. You can also cast the spell using spell slots you have of the appropriate level. The spell’s spellcasting ability is the ability increased by this feat.
As a reaction to a d20 being rolled for an attack roll, skill check or saving throw, but before the result is known, you may choose to roll a d6 and add or subtract the number from said roll. Once you've used this feature, you must take a long rest before using it again.