You must pay all costs and follow all timing rules for lands played and spells cast from the top of your library this way
Each box includes 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Borderless Legendary cards, 98 nonfoil cards), 10 Archenemy cards, a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil alt-border card of rarity Rare or higher and 1 Traditional Foil Uncommon card), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card.
The drawback is very obvious: Once your O-Card gets destroyed, your opponent gets back, which was lost
Even though Cloud, Ex-SOLDIER offers additional card draw for each equipped creature, it still ends up being far better to just focus on piling everything on Cloud and protecting him rather than spreading it out: you'll kill people faster with commander damage, you'll reap bigger rewards off stuff like Behemoth Sledge gaining you way more life, and it's simply easier to protect a single creature than trying to protect your entire board
With Tiered, you can only choose one single mode
Seeing as Summons in the actual Final Fantasy franchise only stick around for a few turns, having them represented as Sagas in Magic makes perfect sense