Arcane Runes (5e Spell)
From D&D Wiki
|Casting time:||1 action|
Create up to three magical, invisible runes on one or more creatures within range to make them easier for you to detect and strike. The target creatures are not aware the runes are placed on them, and the runes appear visible only to you. Anyone casting detect magic will see the runes clearly, and casting dispel magic on any of the affected targets will dispel this effect on all targets.
While a target bears this rune, you can detect its location anywhere within a range of up to 500 feet, to an accuracy of 5 feet. In of itself, this is not accurate enough to negate the effect invisibility has on attack rolls.
Whenever you cast a spell that requires you to make an attack roll against a target with one of these runes, you can destroy one rune to gain advantage on your attack roll.
If you cast magic missile targeting a creature with one of these runes, you can destroy one rune to gain a +4 bonus on the damage roll of one dart. You can destroy any number of runes to affect the same number of darts.
At Higher Levels. When you cast this spell using a spell slot of 2nd level. You can place one additional rune, it then scales up to two additional at 3rd level, three additional a 4th level and four additional at 5th level. You can not cast it higher than 5th level.