Where this card shines is in decks that want to turbo out powerful, non-Artifact cards as quickly as possible
Brawl Not Legal Vintage Not Legal Timeless Not Legal Commander Not Legal Pauper Not Legal Oathbreaker Not Legal Penny Not Legal Toolbox Notes and Rules Information for Standard Procedure: At the time of Unfinitys release, the following card sets are permitted in the Standard format: Innistrad: Midnight Hunt, Innistrad: Crimson Vow, Kamigawa: Neon Dynasty, Streets of New Capenna, and Dominaria United
Lion Heart is a pretty nice card that you might not always want, but the white/red equipment deck will love it
I will note at the time of writing this the second print run appears to be unclear to me as to when, or if it has already happened
Landcyclers changed all this, since for two generic mana you could get whatever land applied to them