What level should this spell be?

[Yunru]

To weigh in myself, it's better to compare it to Magic Missile, except Magic Missile is vastly too powerful for it's level. Magic Missile is equivalent to a 2nd level multi-hit spell (3d6), so if we wcale that back to proper levels (2d4+2) and compare to Cure Wounds (1d8+3) we get 7 vs. 7.5.