good job on the update!!
Thanks
Mostly agree with the review.
But there is one hero that maybe in need of further review. Paladin Leon.
IMO, most paladin one weakness is that they will eventually kill themselves while trying to shield other hero(es) with their aura. In arena, there was one case when my enemy got a double kill because an already weakened Faye paladin activated her aura to shield my Lucille from Sven's wyvern attack. Both died at the same time. Paladin Leon does not have such weakness, and while he doesn't mitigate damage as good as other paladin, he actually can aid in killing instead. Not as fierce as Tristan, but at least Leon is not limited to melee range enemies.
His base def is also slightly higher than Victoria, so he'll heal a little more health. Not that it'll play a huge role in arena since healing is reduced significantly there.
On my opinion, he should be at least at the same ratings as Victoria, instead of lower than her. Not to mention that he's much easier to get since we are sure to get one when we start playing.
But yeah, I do not have Paladin Leon myself (I will build one if RNG give me a Leon, just because I want to test him in tankers team), and haven't got the luck to encounter him in any arena matches (I did once, but the AI of guardian mess the chance of him showing off his aura). IF his aura does not reflect damage immediately after activating, then yes, I may change my mind and agree with your review for him.
The problem with Leon is that his aura works best if you pair him with other high HP units (i.e. other guardians) and a full guardian team is only found in Arena. He's rated the same as Paladin Victoria in PvP (both B class as they play slightly different roles like you mentioned).
The slightly higher aura heal doesn't count for much in Arena like you mentioned and in PvE i doubt that slight extra would be enough to protect your softer units versus Paladin Victoria's damage absorb.
I gave both of them the same ratings except where Victoria is rated A while Leon is rated B. Reason being, Victoria can protect your squishy units in PvE as her aura absorbs damage while Leon's aura would deal damage to the enemy but you would probably lose the squishy unit. That's really the only difference between them since the rest of their set is pretty much the same.
Please let me know if you make any findings while using Paladin Leon. Would be interested to see him in action since I do not personally use Paladin Leon

.