Swarm of Spiders

Caster calls forth or creates 1d4 + 2 spider swarms around the casters feet that follow the casters command (They take their turn with the caster and can move immediately upon casting)

Each swarm takes up a 5ft radius and has a speed of 30ft. Their AC is 12 and they have 5HP. When a swarm reaches a target creature (within 5ft) the target makes a Dex save, on failure the swarm climbs onto the target and deals 1d6 poison damage, then must make an Int save, on failure the target becomes frightened while there are swarms in sight. After a swarm attacks, it disperses.

If a creature attempts to walk through a swarm, as a reaction the swarm may attempt to attack the target.

Casting at higher levels adds 1d4 swarms per level.