Fellwar Stone [The Dark]Set: The Dark Type: Artifact Rarity: Uncommon Cost: {2} {T}: Add one mana of any color that a land an opponent controls could produce. "What do you have that I cannot obtain?" Mairsil, called the Pretender

If X is 10 or more

Knives in the sky

Set: Mirrodin Type: Instant Rarity: Common Cost: {1}{R} Target creature gets +4/+0 until end of turn

Kongming was forced to bluff at Xicheng

Urza decided to create one versatile being

Set: Magic 2010 Type: Enchantment Rarity: Rare Cost: {4}{G}{G} Whenever an opponent casts a spell

and the carpet carried her high out of our reach

Set: San Diego Comic-Con 2016 Type: Legendary Planeswalker — Nissa Rarity: Mythic Cost: {1}{G}{G} +1: Create a 0/1 green Plant creature token

The old hermit would never say what he fed his mushrooms

Set: Champions of Kamigawa Type: Instant Rarity: Uncommon Cost: {1}{U} Counter target activated ability

Set: Amonkhet Invocations Type: Enchantment Rarity: Mythic Cost: {7}{U}{U}{U} You may cast spells from your hand without paying their mana costs

Raugrin meets the sea with jaws wide