Firstly, Acorn cards have been introduced in Unfinity to allow the Un-set to feature cards that are both legal and tournament playable in Eternal formats such as Commander, Vintage, and Legacy, as well as those which arent
We currently play 6 fetch lands that can trigger this twice the turn we play it, but even without that, our opponent will need to kill this our die to it
As supply increases with more packs being opened, this may dip even lower
This is because effects that change an object's color (like the one created by devoid) are considered before the object loses devoid.
Other effects like surveil on Doom Whisperer or loot not yet keyworded, but I hope it will one day like on Frantic Search may take your preference since now you decide on what you keep and youre more in control in exactly what goes to the graveyard