Once a deck has been built, practice with it, and don't be afraid to adjust things until a nice flow is developed
P/T Number 455 Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) In the case where you can't choose a creature an opponent controls for Zenos's first ability (probably because your opponents control no creatures), other creatures will still get -2/-2 until end of turn when Zenos's first ability resolves
Eight is typically too much to pay unless it wins you the game on the spot, and I think Ardyn is just too vulnerable to be as good as the other expensive bombs in this set like Summon: Knights of Round and Summon: Bahamut
A traditional foil basic land replaces the basic land in 20% of Set Boosters, and a foil-stamped signature art card replaces the art card in 10% of ONE Set Boosters
Either dealing noncombat damage or drawing a card, you can then ping down your opponents in instances of 1 damage for each card you have left in your library