Thrumming Stone [The List] SM198 with a series of scenarios

with a series of scenarios that gradually introduce the mechanics of the game

Set: Abyss Rising Card type: Continuous Trap Rarity: Ultra Rare Attack: 0 Defense: 0 Special Summon 1 "Mermail" monster from your Deck

Set: Foreign Black Border Type: Sorcery Rarity: Rare Cost: {X}{B} Target player discards X cards at random

Set: Masters 25 Type: Artifact Rarity: Mythic Cost: {3} Creatures with power greater than the number of cards in your hand can't attack

- Abaddon Black

Thrumming Stone [The List] SM198 with a series of scenariosSet: The List Type: Legendary Artifact Rarity: Rare Cost: {5} Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.)