mtg 30th anniversary promo cards Eternal Witness - Foil Eternal Witness · 30th Anniversary

Set out from The Shire with Bilbo, Gandalf, and their company of Dwarves in pursuit of fortune, adventure, and the dreadful Dragon Smaug

While the ability to dig through your deck via this wheel-like effect is nice, Kayla then allows you to play a one-mana artifact, a two-mana artifact, and a three-mana artifact from among the discarded cards without paying their mana costs

You should definitely consider her if you're interested in a Steel Song deck

Its probably strongest in Simic, Izzet, and the non-white, non-black shards and wedges, as youre less likely to be able to protect your permanents from battlefield sweepers