Nowhere to Run An Enchantment with Flash
While its static abilities are fairly impressive on their own stopping all of your green spells from being countered including your Elf creature spells its Allosaurus Shepherds activated ability that truly sets it apart
Kura, the Boundless Sky Kura is the reincarnation of Jugan, former protector of the Jukai Forest
There's a lot of charm and quirks from the other games that have a high potential of being miss (WotC please make Sabin suplexing Phantom Train a card)
Mind Over Matter untaps more permanents than just artifacts, so its kind of bigger than this list, but it does specify artifacts so were going for it
When it gets good draws, it functions like a powerful aggro deck, but when it gets poor draws, it is incredibly slow for being aggressive and not very resilient to removal