Battletide (EFA - B)

You turn the tide of battle by stealing life energy from your enemy. Choose a creature you can see within range. As long as that creature remains alive and within range, you gain the following benefits:

• You gain advantage on attack rolls and
  saving throws.

• You gain a +1 bonus to your AC

• Your movement increases by 30 feet, to a
  maximum of twice your normal movement.

• When taking the Attack action, you may
  make one extra melee attack.

If you choose not to make the extra attack using the Attack action, you may cast any 0-level or 1st-level spell for which you have a spell slot available.

When the affected creature is freed from the spell's effects, the spell ends.