Rulings

• If you have fewer than X cards in your library, you reveal all of them.2024-11-08
• If a card in a player's library has {X} in its mana cost, X is considered to be 0.2024-11-08
• A permanent card is an artifact, battle, creature, enchantment, land, or planeswalker card.2024-11-08
• If a permanent card in your library has no mana symbols in its upper right corner (because it's a land card, for example), its mana value is 0. Such cards can always be put onto the battlefield with Genesis Wave.2024-11-08
• You don't have to put permanent cards revealed this way onto the battlefield if you choose not to, regardless of their mana values.2024-11-08
• All of the permanents put onto the battlefield this way enter at the same time. If any have triggered abilities that trigger on something else entering, they'll see each other.2024-11-08