The three-mana tap will goad which is amazing in multiplayer making someone attack elsewhere or will make something unblockable and like Rogue's Passage that'll work on anything, so opposing creatures, yours, Commander damage kills and more are all impacted
These cards come from all over Magic and have their own set symbol: Even rarer, these artifacts also come in a schematic art, still in the retro frame: Rarest of all, and one of the rarest promos ever printed in a Standard Legal set in Magics history, you can find serialized double-rainbow foil Schematic Arts in boosters as well
That's really strong, and note that this counts Elf spells, not creatures, so if you are casting Tribal Elf Instants or Sorceries, those will count as well as creatures
Sadly, we weren't able to use it, but please know I really, really tried
Plus, if your Commander dies, it hops back outside of the game, where you can just buy it again although at an extra 2 mana for every time its had to vamoose in this way