Daybound and Nightbound promised a more dynamic approach to double-faced cards, flipping back and forth multiple times throughout a game instead of a single transformation

Deck 1 Abrade 1 Arcane Signet 1 Big Score 1 Bootleggers' Stash 1 Burnished Hart 1 Chaos Warp 1 Cinder Glade 1 Command Tower 1 Copperline Gorge 1 Cultivate 1 Decimate 1 Domri, Anarch of Bolas 1 Esika's Chariot 1 Etali, Primal Storm 1 Evolving Wilds 1 Explore 10 Forest 1 Forgotten Cave 1 Game Trail 1 Garruk's Uprising 1 Ghalta, Primal Hunger 1 Gilded Lotus 1 Goreclaw, Terror of Qal Sisma 1 Grumgully, the Generous 1 Harmonize 1 Hedron Archive 1 Karplusan Forest 1 Llanowar Loamspeaker 1 Lotus Cobra 1 Mind Stone 8 Mountain 1 Path of Discovery 1 Primeval Bounty 1 Reliquary Tower 1 Rootbound Crag 1 Sheltered Thicket 1 Sunbird's Invocation 1 Teapot Slinger 1 Temple of Abandon 1 Tendershoot Dryad 1 Terramorphic Expanse 1 Tranquil Thicket 1 Unnatural Growth 1 Wandertale Mentor 1 Wooded Ridgeline 2) Family Matters (White/Blue/Red) No, we arent talking about the popular TV series from when I was a kid in the 90s

In short, you want to balance the mana value of your spells to ensure you have effective spells to cast throughout the game
(If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.) Once a creature becomes monstrous, it can't become monstrous again
Boasting again on a future turn won't let you play that card