On another turn, tap use your Merfolk Looter, venture
Living Energy is green, blue, and red (Temur) and led by Saheeli, Radiant CreatorSaheeli, Radiant Creator, a 4/4 Human Artificer that gives us an energy whenever we cast an artifact or Artificer spell
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Syr Konrad, the Grim FINAL FANTASY: Through the Ages, Uncommon Limited: 4.0 Golbez, Clad in Darkness (Syr Konrad, the Grim) is also a fantastic finisher, and one of those cards that makes the entire game revolve around it when it hits the board
As for the white side, they tend to help you find artifacts directly from your library
By itself, Arceus is just a slightly worse Pikachu Ex