Zendikar Resurgent [The List] Rat where X is the number

where X is the number of basic land types among lands you control

Set: Murders at Karlov Manor Promos Type: Artifact — Equipment Rarity: Mythic Cost: {1} Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity

Advanced Dungeons & Dragons: Players Handbook *(1978)*

Set: Modern Horizons 2 Type: Creature — Dauthi Rogue Rarity: Rare Cost: {B}{B} Shadow

Set: Introductory Two-Player Set Type: Basic Land — Forest Rarity: Common ({T}: Add {G}

Zendikar Resurgent [The List] Rat where X is the numberSet: The List Type: Enchantment Rarity: Rare Cost: {5}{G}{G} Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.) Whenever you cast a creature spell, draw a card.