Its interaction with Witch's Oven was a frustrating one to try and get around, and made a pretty nice life drain loop
That seems inefficient, although it is a way for burn decks to get extra reach and deal with crap like Forge-Tender and Firewalker
For Ursula's Return, the Starter Decks are focused around two synergies
Her Magic iteration makes for an amazing commander thanks to her ability to double your combat phases and produce explosively violent turns that are capable of winning games
In those situations, its just a colorless land, which isnt that bad
Theyre a typical bonus sheet, and theyll appear in Play and Collector boosters, but only those already Standard-legal will be playable in the format, like Shock or Rest in Peace