Thats a great rate if you ask me
However, there are better options like Counterspell or Mana Drain that provide more efficient counters without giving card advantage to the opponent
Of course, that cost can become its own benefit when combined with the right amethyst cards from Rise of the Floodborn, with cards that trigger abilities upon leaving play able to quickly bounce back to your hand thanks to Madam Mim, Purple Dragons I Win, I Win
2 Necron Dynasties Impossibly ancient and utterly devoid of emotion, the once dormant Necron army is here to reclaim what is theirs
Foil cards are sometimes called shiny cards thanks to the glistening treatment on them
So put on your lab coat and rubber gloves, because it's time to start brewing with Ooze