While making the opponent pay one to ping you with Walking Ballista is nice, without tokens being a part of the metagame, I'm not sure Amulet of Safekeeping does enough to show up in sideboards in our current format, although it's a great safety valve to have around for the next 15 months of Standard in case something changes
Put another way, for every two copies of Teferi, Who Slows the Sunset, theres three copies of Arlinn, the Packs Hope
The review embargo was just lifted
I felt it was the perfect Orzhov card, so we planned to just repeat it
(It's an artifact with ", Sacrifice this token: Add one mana of any color.") Enchantment - Aura Ramp (CTRL to add secondary) Recursion Immortal Obligation Return target creature card from an opponent's graveyard to the battlefield under their control with a duty counter on it