Engineered Explosives [Double Masters]Set: Double Masters Type: Artifact Rarity: Rare Cost: {X} Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives.

Set: Sun & Moon: Burning Shadows Type: Colorless Rarity: Promo Retreat cost: Colorless

By appearing in places miles apart at the same time

players can't cast spells or activate abilities that aren't mana abilities

Set: Black & White: Dark Explorers Type: Darkness Rarity: Uncommon Retreat cost: Colorless

Then each player sacrifices all other nonland permanents they control

Set: Khans of Tarkir Type: Artifact Rarity: Rare Cost: {1} Whenever another permanent enters the battlefield under your control

Set: XY: Ancient Origins Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

Though many think of Wolves as solitary predators

Set: Odyssey Type: Creature — Human Druid Rarity: Rare Cost: {5}{G} At the beginning of your upkeep

Set: HeartGold & SoulSilver: Call of Legends Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Ixalan Prerelease Promos Type: Enchantment Rarity: Rare Cost: {5}{R} Whenever you cast a spell from your hand

It has "This creature's power and toughness are each equal to the number of experience counters you have