Swarm of hopping fleas

When you cast this spell you send flees on your body to hop on your target up to 10 feet causing the target to scratch uncontrollably dealing 1d4 damage every single round and rolling everything with disadvantage until they get rid of the flee. The target have to choose between rolling a save DC of 16 to get rid of the flea or roll an attack with disadvantage.

In order for the spell to work you have to have Fleas that got a taste of your blood. Flees that goes out of your 10 feet radius will no longer be in your control and will return to be a normal flea until the flee is in your 10 feet radius again.