Both paths through Tomb of Annihilation feature room effects which should cause a Sefris trigger from discarding or sacrificing creatures (including tokens), but if Sefris was already the reason we were venturing in the first place her once per turn stipulation means we cant take advantage
It's great in loads of other places too, like Boros Voltron where you give your leader double strike for attacking to kill twice as fast with Commander Damage and then the power boosts from equipment or auras
Foretell allows you to pay two mana upfront to exile a spell from your hand, then pay an additional (usually reduced) cost to cast it from exile later
(The same is true for card types that don't appear in most games, like plane or scheme.) You can't choose a subtype, such as creature types like Spider or Hero, artifact types like Treasure or Food, or enchantment types like Aura
Every pack contains at least 1 Enchanting Tales card of rarity Uncommon or higher and a Traditional Foil card of any rarity replaces a Common in 33% of boosters
Instead, Id be much more excited to start with red-black, which offers premium removal and a powerful void synergy