Culling Ritual is a board wipe that I have to remember hits all nonland permanents of mana value 2 or less instead of just artifacts, which is what it historically clears due to the best mana rocks all meeting that criteria
Once you've announced that you're casting a spell, players can't take any actions until you've finished doing so
Sure, if this stays in play for three or so turns then it is going to dominate the game but lots of cards fit that bill
Any legendary creature can be granted indestructible and hexproof, essentially saving it from everything but the likes of Toxic Deluge and Farewell
At four mana, it destroys one artifact or enchantment
The Kamigawa: Neon Dynasty set also releases on February 18, but MTG Arena players can get their hands on digital versions of the cards a week earlier, on February 10