User blog comment:MickB/Khrax, the Archaic Overlord/@comment-11434673-20131027022752

His passive is... overpowered. With 100 AP and 50% health, he'd gain 50 AP. With 200 AP, that'd be 100, etc. At 500 AP and at 10% health, he'd gain 130% AP! (50% plus 80% because he is under 50% health so the passive is doubled (assuming the passive works by only doubling the % gain that is under the 50%)) so he'd have 1150 AP in this case.

With that number above (1150 AP), when he's at 10% health, his abilities would be dealing: Q- 1280 W-755 (2265 total damage) E- 860 and R- 1240 per target hit (6200 total for 5 champions). All that damage with only 500 AP.

Arcane Pulse: The range is too high. I'd reduce that to be closer to 750-800. Mana cost is also too high. I'd reduce all levels by 25-30 (50-100). You should rescale the damage to give 40 each level (starting at 65/105/145/185/225) and drop the ratio by 5%. Also, you should make the cooldown reduction a flat number instead of giving him a %. At 2 seconds, each spell gets significant reduction without having a lot of added math (but, 1 seconds is honeslt good enough seeing how low of cooldown his spells are already).

Living Energy: Does this ability bounce between champions and minions or is it one or the other? You should increase the cooldown (or just keep it at 12 seconds each level), and increase the mana cost some (like 10-15 points). Each bounce should either reduce the damage the other bounces deal, the length of the slow or the strength of the slow. Reduce the range a tad. Damage wise: "W=30|70|110|150|190 (65% AP)" from Riuzak's post is nice, but I'd raise the early game damage (70/100/130/160/190 + 65% AP).

Magic Pierce: Reduce the cooldown by 3 seconds (17-13 seconds). Damage seems a tad low. You could increase the base damage and drop the ratio to 45%.

Ancestral Annihilation: Is pretty cool, honestly. You should increase the range to around 800. Level 1's cooldown is a little high. You should reduce that by 30-40 seconds (150/120/90). Change the damage to 175/300/425 + 75% AP.

You NEED to fix the passive, cuz it is broken, but otherall a pretty nice concept. I look forward to seeing any changes and what others have to say.