Dark Tentacles

you unleash 2 tentacles from your palms utilizing your spell attack.  if the target is hit they are grappled an restrained and take 1d4+1 per level for each tentacle.  The tentacles can attack one or 2 separate targets within 60 feet.  If the target makes a contested grapple strength check against the casters intelligence to break out of the tentacle successfully at the start of their turn the caster must make a concentration check.  Each tentacle is checked separately.  If concentration fails both tentacles dissolve.