Should some of them be revised? Many of the cards that were deemed "to good" or "OP" for elo and got banned, were during the time when you only had 12 life, things have changed now with the 14 life system in place.
I want to try and use an example, so I'll try and use Wee Lee. He's an amazing all around card, with 12 life he could 2HKO with Buck, Coraille, Hikiyousan, Lucia, Lulabee, Nympheea, Razor, Serena, and Stanly. Many good cards, a few not so great cards. Most of these are assuming there was no DR aswell, -1 Opp Damage against any pair of Wee Lee + Corraile, Wee Lee + Lucia (W/O her ability), Wee Lee + Lulabee, Wee Lee + Nymphee, Wee Lee + Razor, or Wee Lee + Serena. You only need to have -2 Opp damage for Wee Lee + Buck, Wee Lee + Hikiyousan (SoA works here aswell for no DR required) And how hard is it to find a card to fit that has atleast -2 Opp Damage with a min of 5 or lower? This leaves Wee Lee + Lucia (W/ Ability activated) and Wee Lee + Stanly that need a -3 Opp. Damage, these 2 also allow 2HKO's with the new 14 life system, that is if there is no DR. So why is Wee Lee such a giant threat that he needs to be ELO banned? He is now simply a very good card. There is other cards that should be reviewed aswell, I know they are supposed to be permenately banned, but when the rules change so does the entire metagame and who is or is not overpowered. People may disagree with me, post feedback and say so, but support why, "this is stupid" is just trolling
Now that Numar is available, Wee Lee becomes even more deserving of a permanent ban. Let's see how strong he is:
He has a stable 7 base power. Not extraordinarily high or low.
He has an extra 2 power added in by his bonus. Now 9 power is higher than most cards, so he shouldn't have much trouble winning a round.
He has 6 damage. That's a good amount, and higher than average.
He has a DR ability. Now this takes the edge of attackers like Gibson and Tyd, who can outpower him, so he has a double use. You can attack or defend with him without being put in a bad position.
He is ONLY 4*. ONLY. 9 power is good enough for 5*. 6 damage is good enough for 5*. A DR ability with a low minimum is good enough for a 5*. And this guy's only 4*!!!
Add to that the fact that he has super stable clanmates in Numar, Nanook, Gaia, Janice, Taigo and Gabrielle (non 5*) and you can see him deserving the ban more and more. SOA hardly affects him. SOB hurts more but he still has the fork. DR still hurts more (especially someone like Spiaghi or Veenyle) but he will give you an easy 2-4 damage.
And in 12 life ELO anyways, Ulu Watu were never a 2hKO clan. They aimed to either win 3 rounds with their huge power, or win 2 and block with their DR (Kirk, Gabrielle etc.). Giving them Wee Lee would just add to the strategies they already have.
I don't see Numar as much of a threat with for making a gap because of the popularity of SoA, and with both Tyd and Gibson if they have their bonus he has to use atleast 1 extra pill, but I get what you mean, but I wasn't trying to be specific and make some plea to bring Wee Lee back, he was just who I picked for an example. Thanks so far for the opinions, especially the thurough explanation from Trippie, hope to hear more from the community soon