The Phalanx is the highest toughness card in this deck with 13 for just 5 mana, although it does arrive tapped so you'll take a turn off to block with
Being able to play this turn one, is not one of the greatest plays you can have, but dropping this at any time is basically an extra boost to all of your deck
Full spoiler (so far?) is here, let me know if there's something cool I missed
4 A-Vivi Ornitier 4 Stormchaser's Talent 4 Wild Ride 4 Boomerang Basics 4 Stock Up 2 Iroh's Demonstration 2 Illuminating Lash 2 Octopus Form 2 Bounce Off 1 Burst Lightning 4 Sewer-veillance Cam 4 Preponderant Pearl 7 Island 4 Steam Vents 4 Riverpyre Verge 4 Sulfur Falls 2 Mountain 1 Starting Town 1 Multiversal Passage 3 A-Cori Steel Cutter 2 Pyroclasm 2 Spell Pierce 2 Spell Snare 2 Sear 2 Ghost Vacuum 1 Negate 1 Annul So why act on Sewer-veillance Cam and not A-Vivi Ornitier
However, I think I undervalued the fact that it's fairly reliable card draw on a mono-red commander, which we don't see all that frequently
A format without them will be open for more fans to compete - as fewer players will have to put together half-formed decks, conspicuously absent of one or two copies of the best ex cards that are missing from their collection