mtg cards banned in all formats and Rules – Wizards of the Coast has

Having the effect trigger as an ETB, and not just as an attack trigger is huge, and youre triggering twice more if it does manage to attack

Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn, you gain that much life

I find the Bracket system highly useful for initiating Rule 0 conversations and getting a better sense of what everybody wants to play, especially considering that EDH deckbuilding sites like Moxfield and Archidekt automatically assign an estimated Bracket based on the cards in your deck

No thought but hunger

You dont have to worry about it dying in an attack because you can easily get it back after casting it as an adventure from your graveyard