I know some Magic cards have substantially longer English type lines than Instant, and several fill up very-nearly the entire available space (e.g
One possibility is to cast Apocalypse, a card that gets rid of everything, including your hand, leaving you only with Barren Glory, but that needs to be done on your upkeep, so there are options like Leyline of Anticipation or Emergence Zone to give these spells flash
(It can't be blocked except by two or more creatures.) Jecht, Reluctant Guardian // Braska's Final Aeon Rarity: Rare TYPE: Legendary Creature // Legendary Enchantment Creature SUBTYPE: Human Warrior // Saga Nightmare CMC: 4 Mana cost: USD: $2.39 EUR: 1.88 TIX: 0.02 EDHREC RANK: 6684 (4/3) Menace Whenever Jecht deals combat damage to a player, you may exile it, then return it to the battlefield transformed under its owner's control
Theres probably even more detail that I could tease out of this, but even so, just look at the astonishing amount of theme and backstory that can occupy a single card
One attack from Kaalia is enough to cheat out big targets
