2nd-Level Divination
By casting gem-inlaid sticks, rolling dragon bones, laying out ornate cards, or employing some other divining tool, you receive an omen from an otherworldly entity about the results of a specific course of action that you plan to take within the next 30 minutes. The DM chooses from the following possible omens:
The spell doesn't take into account any possible circumstances that might change the outcome, such as the casting of additional spells or the loss or gain of a companion.
If you cast the spell two or more times before completing your next long rest, there is a cumulative 25% chance for each casting after the first that you get a random reading. The DM makes this roll in secret.
Player's Handbook (2014), p. 215