Necromancer Class

Abilities

1. Harvest Life: Melee attack that deals damage and heals the necromancer for a percentage of the damage done.
2. Summon Skeleton: Summons a skeletal minion that assists the necromancer in battle.
3. Blood Barrier: The necromancer sacrifices some life to grant a friendly player/minion a shield that absorbs damage.

Todo

1. Animate sprite
2. Harvest Life needs some polish.
3. The skeleton sometimes lags behind a bit due to the Math.random() in the mob component
4. Blood barrier needs some polish.
5. Blood barrier currently just heals the target. Should make it apply a shield instead.