If X is 5 or more, for each artifact destroyed this way, create a token that's a copy of it
You pay four mana to make a Saproling, but the token doubler makes an extra one
[6] Lets say a player casts Silence the Believers targeting three cards with wardward 2, ward 2, and ward sacrifice a creature, respectively

Scientists Academy Elite Academy Loremaster Academy Wall Accumulated Knowledge Acquisition Octopus Aeon Chronicler Aether Channeler Aether Syphon Airborne Aid Alandra, Sky Dreamer Alchemist's Apprentice All-Seeing Arbiter Alphinaud Leveilleur Amass the Components An Unearthly Child Ancestral Reminiscence Aphetto Runecaster April O'Neil, Hacktivist April O'Neil, Live on the Scene April, Reporter of the Weird Aquitect's Will Arcane Denial Arcane Investigator Arcane Subtraction Archive Haunt Archivist Archmage Ascension Archmage Emeritus Archmage of Runes Argent Mutation Arrester's Admonition Artful Looter Artificer's Epiphany Artistic Refusal Ascendant Spirit Assassin Gauntlet Astral Wingspan Astrologian's Planisphere Atemsis, All-Seeing Atlantean Cavalry Atlantean Skirmisher Attuma, Atlantean Warlord Aura Finesse Aven Fisher Avian Oddity Azami, Lady of Scrolls Azure Mage B.O.B

The mana curve is generally bell-shaped, with a few one-mana cards, then more two- to four-mana cards before going back down again once you get above that