NetEase Games is offering a limited-time event that allows players to earn the Scarlet Witch Chaos Gown Skin and Nameplate for free. To participate, complete matches in Quick Match, Competitive, or Practice VS. AI before April 25th.
To unlock the Chaos Gown Nameplate, play three matches. For the full Chaos Gown skin, complete nine matches. This limited-time event is part of Marvel Rivals Season 2: Hellfire Gala. Check your game’s details to confirm eligibility and start earning rewards today.
Source: https://www.ign.com/wikis/marvel-rivals/How_to_Get_Free_Scarlet_Witch_Chaos_Gown_Skin_and_Nameplate