Decks ought to be running 5-15 pieces of strong interaction, and of that most should be instant speed
But the spell/creature side of these are more efficient than the average from the Zendikar Rising modal double-faced cards and the mono-colored ones can enter untapped if you pay life, so I think many will find a home, and not just in Goblin Charbelcher decks
If the biggest drawbacks you cite are that it doesn't hit all cards in a graveyard and the second activated ability costs too much, I'll take those drawbacks when I have the chance to recur the artifact with a Myr Retriever
The deck ran a set of Black Vise with Howling Mine, numerous ways to bounce, or destroy your Stasis (including DS up there), and a handful of counterspells and removal, including eventually a playset of Force of Will
Restricted is only a thing in Vintage, and means you can only play one copy in the main deck and sideboard combined
(It cant block