Bolas's Citadel (White Border) [Mystery Booster 2] Toy Set: Secret Lair Drop Series

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {1}{R} Sacrifice a creature: Goblin Bombardment deals 1 damage to target creature or player

and 5th Edition Dungeon Master's Guide (2014)

Set: Bloomburrow Promos Type: Creature — Elemental Snake Rarity: Mythic Cost: {5}{B} As an additional cost to cast this spell

And just as she was singing her final song

Bolas's Citadel (White Border) [Mystery Booster 2] Toy Set: Secret Lair Drop SeriesSet: Mystery Booster 2 Type: Legendary Artifact Rarity: Rare Cost: {3}{B}{B}{B} You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.