New Arena players are offered several pre-made decks to start with (like the Welcome Decks and Intro Decks offered in brick and mortar stores) or they can spend real money to purchase booster packs or enter events, gathering single cards to brew their own decks from scratch
Just make sure to hold priority and stack the ability multiple times before it resolves: Otherwise, the Shaman might ping itself into the graveyard before it gets the job done
The Hail Caesar Commander Deck includes 1 ready-to-play Red-White-Black deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), a Collector Booster Sample Pack (contains 2 Traditional Foil or nonfoil special treatment cards, with 1 Extended-Art card of rarity Rare or higher and 1 alt-art, alt-frame card of rarity Uncommon or higher), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the card's border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert and 1 reference card
Look, Temporal Cleansing propelled me up the ladder in a go-wide merfolk deck in Standard
There is a cap of 16 seats
1 Get Lost 1 Poetic Ingenuity 1 Gimli's Reckless Might 1 Twists and Turns Here are the deck stats from our friends at Archidekt: Id also like to pick up a Savage Order to put in the deck