Remember that this list includes cards that arent actually artifacts on the front side, like Birgi, God of Storytelling and Invasion of Vryn
If you exalt them, they grow splendiferous
Bog Humbugs Bog Humbugs mixes a delightful mini-game with aggression
If none of your other creatures die for you to get a Treasure token on your turn, sacrifice one of the horses to Ashnod's Altar to get your Clue token instead
Finally, if your total creature toughness is 40 or greater, each opponent loses half of their life total, rounded up
(You may cast it as a sorcery on a later turn without paying its mana cost.) Whenever a legendary creature enters the battlefield under your control, put a +1/+1 counter on each creature you control