Nyx Lotus [Theros Beyond Death Prerelease Promos] Eighth Edition {T}: You may put a

{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield

Gatha struggled to keep his experiments in and his patrons out

Set: Magic Player Rewards 2002 Type: Token Creature — Dragon Rarity: Common Flying

you may sacrifice an artifact

Evincar of Rath

Nyx Lotus [Theros Beyond Death Prerelease Promos] Eighth Edition {T}: You may put aSet: Theros Beyond Death Prerelease Promos Type: Legendary Artifact Rarity: Rare Cost: {4} Nyx Lotus enters the battlefield tapped. {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)