Urge to Feed [Explorers of Ixalan] Dwarf Citizen you may sacrifice a Mountain

you may sacrifice a Mountain rather than pay this spell's mana cost

T: Create an X/X colorless Construct artifact creature token

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Type: Legendary Creature — Tiefling Warlock Rarity: Uncommon Cost: {2}{U}{R} Dark One's Own Luck — Whenever you roll one or more dice

Set: Time Spiral Remastered Type: Creature — Kithkin Rebel Scout Rarity: Common Cost: {1}{W} {4}

but they fled long ago

Urge to Feed [Explorers of Ixalan] Dwarf Citizen you may sacrifice a MountainSet: Explorers of Ixalan Type: Instant Rarity: Uncommon Cost: {B}{B} Target creature gets 3 3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1 +1 counter on each of those Vampires.