Keep in mind that it only covers the original four Immersive ex cards released in-game, so you don't have to worry about finding all of the Immersive cards
Its abilities favor Witherbloom within the context of Secrets of Strixhaven if you're playing Limited formats, but for Standard, the card slots nicely into a variety of decks, including Mono-Black
That is a rare and powerful combination
Bandai's official reveals, card count, and the last unrevealed slot
I'm not sure if it's the best sword for a single-sword deck or Cube, but it does seem like it's worth trying out, and I'm curious if it will find a home in Standard, especially with all of the "equipment matters" cards
Being able to ignore equipment costs and put all of your equipment onto a suitable combatant without investing mana makes drawing a card with Strength-Testing Hammer during each attack into a trivial matter