Chromatic Trap

Within touch range, create an almost invisible circle 5 inches in diameter. The circle must be placed on a solid surface, and while detonate when an enemy comes within 5 feet. Upon detonation, the trap will fire a stream of the desired damage type at the entity that triggered it. When performing the spell, the caster must decide the damage type (Fire, Cold, Acid, Lightning, Poison, or Necrotic) and wether the trap is to be a single use bomb that damages all entites within 10 feet, or a multi-use trap that only hits one at a time. If it is multi-use, then it shall fire a stream of the chosen magic when triggered and will cause 4 d4 damage, the target must make a constitution saving throw, if it is 12 or higher they take half damage. If the explosion is chosen then it will do 5 d4 damage and push the surrounding entities back 10 feet from the trap (like thunderwave). The target(s) must then make a constitution saving throw of 15 or higher, if they make this they take half damage and are not pushed back. The explosion will also push affect structures and items around it if they are effected by the damage type (i.e. wood sets on fire, etc.).

Using a spell slot higher than 2nd results in a in an extra d4 being used in both cases per every level above 2, it also increases the explosion radius of the explosion, similarly adding 5 feet for each level. However, an additional spoon of powder is required for each level.