Sunglasses of Urza (Retro) [30th Anniversary Edition]

Sunglasses of Urza (Retro) [30th Anniversary Edition]Set: 30th Anniversary Edition Type: Artifact Rarity: Rare Cost: {3} You may spend white mana as though it were red mana.

Set: Secret Lair Drop Series Type: Creature — Goblin Rarity: Rare Cost: {3}{R} Whenever Goblin Snowman blocks

Set: Diamond & Pearl: Secret Wonders Type: Psychic Rarity: Uncommon Retreat cost: Colorless

000 Type: Artifact Rarity: Common Cost: {3} {T}: Add one mana of any color in your commander's color identity

The earth walks

Set: The List Type: Creature — Lhurgoyf Rarity: Rare Cost: {1}{G} Tarmogoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1

you may play those cards

Green Energy color cost: 2(BG) Card type: Battle Power: 5000 Combo energy: 1 Combo power: 10000 [Energy-Exhaust]

Set: XY: Flashfire Type: Fire Rarity: Secret Rare Retreat cost: Colorless

but it is necessary

Set: Secret Lair Drop Promos Type: Artifact Rarity: Rare Cost: {4} If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger

Set: Streets of New Capenna Type: Land — Plains Island Swamp Rarity: Rare ({T}: Add {W}

Whenever Sphinx Ambassador deals combat damage to a player