Unit Energy (171/156) (Lightning, Psychic, Metal) [Sun & Moon: Ultra Prism]Set: Sun & Moon: Ultra Prism Type: Colorless Rarity: Secret Rare

that player adds one mana of any type that land produced

That creature gains haste until end of turn

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} {4}

scorning the impetuous haste of short-lived mortal creatures

Indestructible

Great Yawgmoth

Set: XY: Generations Type: Lightning Rarity: Ultra Rare Retreat cost: 0

If they do

and its horrendous cost

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {2} {1}

Set: Tempest Type: Artifact Rarity: Rare Cost: {2} Black spells you cast cost {1} less to cast

It was finding the invisible door that caused him problems