TipToe Pixie

You sprinkle fairy dust over a small doll and channel magic through it. The dust shines with dim light and morphs the doll into a Pixie made of glow.
The user binds the Pixie to a creature that it can clearly see within sight. The target feels a presence and make a Perception check, to succeed the Pixie has to make a higher Sneak check with the added bonus of the spellcaster's spell modifier.

If the Pixie succeeds, it becomes invisible and incorporeal on the target. For 15 minutes it can relay all spoken words of the target to the caster with no distance limit and translates it in common. During that time the caster has disadvantage on all Saving Throws. The duration of the spell goes up by 15 minutes for every spell level  used the cast and at 5th lv or higher the Pixie has advantage on its Sneak check and split into a pair to spy on two targets. Each Pixie has to make its own Sneak check.