So I understand this was already approved by another member of staff, but the bonus five plus a constant damaging aura seems a tad much, as it makes almost any melee attack cause the attacker to be damaged any time that they attack. I'd like it if we could either remove the plus 5 or lower the power of the aura to 100 per foot/damage instead, or maybe just give it a static distance that doesn't stretch too far. Another option could be making it an active ability with an upkeep, that way it isn't just constant free damage.
Since the max Ki is 500,000, this ability could end up with a 10,000 foot wide aura dealing 10,000 damage just by you existing, and that seems like something that shouldn't really be able to happen, not only because it seems overpowered, but also because it could make talking to people very difficult if they die when closer than 2 miles.