EMERGENCY MAINTENANCE CONCLUDED
The Team has identified a fix for the recent Catalyst Offer issue.
Summoners who purchased this offer have been temporarily locked out of the Contest to Clawback any Catalysts bought/used while active, and ensure previously owned resources remain intact.
They will be unlocked once this process is complete, and no further action will be taken on their Accounts - along with a compensation package to those affected for the inconvenience.
Doing this allows us to bring the Game back up for everyone else.
We've removed the affected offer so we can decide later whether or not to bring it back after it's been fixed.
Additionally, all summoners can expect a general compensation package due to this Emergency Maintenance interrupting their play session.
We apologize for the inconvenience.
The Team has identified a fix for the recent Catalyst Offer issue.
Summoners who purchased this offer have been temporarily locked out of the Contest to Clawback any Catalysts bought/used while active, and ensure previously owned resources remain intact.
They will be unlocked once this process is complete, and no further action will be taken on their Accounts - along with a compensation package to those affected for the inconvenience.
Doing this allows us to bring the Game back up for everyone else.
We've removed the affected offer so we can decide later whether or not to bring it back after it's been fixed.
Additionally, all summoners can expect a general compensation package due to this Emergency Maintenance interrupting their play session.
We apologize for the inconvenience.
What is the reason for RedSkull immunities?

Why is he immune to nullify, fateseal, stagger against champions but not against nodes? Makes no sense.
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Comments
And if you must know, there’s plenty of reason to want to use Red skull over Shuri. Some nodes and fights want you to have buffs and Red skull provides there. Have fun using Shuri against buffed up or Havok. Red skull has heal block, that’s useful sometimes. He has very potent power drain capabilities that can seriously shut down fights Shuri can’t. It’s not like he’s screwed over completely against things like buffet anyways, you just gotta play more carefully.
In any node which applies disorients, try him and your parries will fail.
Shuri is better than red skull and shuri is better than red skull in nullify nodes. At the same time shuri don't have power control or armor buff. She can't be used against havok or tech paths where you need armor buff, But red skull can be used. Different champs have different abilities and different usecases
Red skull and shuri have completely different use cases. Both cannot be compared.
On the flip side, there are two reasons why he is not immune to node based buff interference. First is because he isn’t built to be a solution to those challenges. Kabam didn’t want people reaching for Red Skull when they saw, for example, a power snack node. The devs likely felt that it would be too much utility for his kit, which is fair because he has a lot of utility.
The second reason is that it would limit the devs room to design around him. For example, this month’s Morbius boss in EQ 1.1 has a node that when you parry him, it nullifies a buff off of both champions. There are other nodes like this throughout the game. I could see Kabam developing like a SoS style fight for Red Skull in which he is armor break immune but there are nodes which allow you to nullify his armors with skilled gameplay.
Tl;dr: Red Skull has these immunities tailored the way they are because the devs want him to have the immunities tailored the way they are.
And if you go try nodes that place concussion on archangel, he is immune to it