Bloody Path

Target a creature with blood within the range of the spell, that creature must make a constitution saving throw against the casters spell save DC.
On a failed save, the caster is teleported to a tile within 5ft of the target and the target takes 2d8+[spell mod] necrotic damage.
On a passed save, the caster is not teleported and the target only takes half the spells damage. After a creature passes the save the spell ends.

At higher levels:
For every level above 4th that this spell is cast at the caster may pick a additional target after the first teleport, additional targets must make the save in order until the caster runs our of teleports or one of the targets passes the save.