What about a tank race?

You walk at 50-80% of normal speed, leveling will increase this.
You start with 150HP and can level it up to 500HP (maby a little too much..)
20- 35% chance that the person who hit you must reload his weapon.
Ultimate: Works only (once) if 65%+ of your teamates are death, (% chance is % of death teammates) summon 1-2 death teammates into battle with their equipment how they die.
(example: 8/10 T are death, 80% chance to summon 1-2 teammates)