In terms of speedrun the hardest part is probably energy cards and the luck you need to get the cards you need unless you stick to the starter decks
Grixis Dragons - Magic 2019 Standard | ASTRALPLANE, (5-0) MTGO Creatures (20) 2 Demanding Dragon 2 Pia Nalaar 4 Glorybringer 4 Goblin Chainwhirler 4 Nicol Bolas, the Ravager 4 Scrapheap Scrounger Planeswalkers (5) 2 Sarkhan, Fireblood 3 Chandra, Torch of Defiance Instants (8) 2 Magma Spray 2 Unlicensed Disintegration 4 Abrade Artifacts (2) 2 Heart of Kiran Lands (25) 6 Mountain 1 Scavenger Grounds 2 Aether Hub 4 Canyon Slough 4 Dragonskull Summit 4 Spirebluff Canal 4 Sulfur Falls Sideboard (15) 1 Angrath, the Flame-Chained 1 Magma Spray 1 Hour of Glory 1 Spit Flame 2 Chandra's Defeat 3 Negate 1 Banefire 2 Doomfall 3 Duress When Sarkhan, Fireblood and Chandra, Torch of Defiance come together in the same deck, you have the possibility of some explosive turns
LISTING IS FOR THE JAPANESE EDITIONEach Disney Lorcana: The First Chapter Booster Box contains 16 booster packs
I've been playing Akiri, Fearless Voyager for years as my own Equipment commander specifically to encourage myself to Go Wide swinging with equipment instead of going Voltron as a self-imposed nerf to the deck and STILL it ends up correct to just pile on all my equipment on to a single creature most of the time
Reliquary Tower is the only uncommon of note, and it's less than a dollar at this point thanks to countless reprintings
Gather your friends, embrace your inner villain, and prepare for a wickedly fun adventure that promises hours of entertainment!