Edeneth's Rift Bolt

Drawing upon dunamis to open a rift in the boundaries between the planes, you mark a single target you can see within range. Make a spell attack roll. On a hit, roll 1d4 and note the result. The number on the d4 result is how many turns it will take before the spell triggers. When the spell triggers, the target takes 1d8 fire damage and 1d8 psychic damage.