It might not be as good as Prosper, Tome-Bound, but Vihaan is an intriguing alternative as a treasure commander
She felt that since Teferi would be embodying time manipulation that we could show off Teferi manipulating time by creating multiple versions of art for him
Ancient Adamantoise Any use you get out of Ancient Adamantoise makes it great, because the rebate of 10 treasures is massive and often means you can cast a larger and stronger spell after this
This method does require quite a bit of card research as well as time to test out new ideas
There aren't any major rules that are unique to Artifacts, but many cards care about the number of Artifacts you control, or can only target Artifact permanents
That way you can gas up their decks, let them see what its like to pull off explosive plays later in the game, and theyll likely have a lot more fun than if they are totally mana screwed in their first game