Blood Trick

A spray of blood erupts from your palm towards a creature you can see within range.  That creature must succeed on a Dexterity saving throw or become blinded until the end of its next turn.  A creature may also use its action to wipe blood from its eyes, ending the effect early.

Alternatively, you may cause the conjured blood to seep slowly from your plam rather than violently.

The blood conjured by this spell is perfectly identical to yor own blood, as if you had just been wounded.