Can you explain the benefit of using this card as it is now instead of other creature? I can think about a Lava Destroyer vs Spine carapace, but this is a rare situation and would require 3 quanta types. And adding an Explosion or an Armor would be more efficient to protect the Destroyer with quanta types it already uses.
Well, I could imagine some more plausible situations to use it.
One of them I encounter often. Currently (unfortunately), I have only one Gravity Nymph, but it does much more healing and is far more effective than any other card. But I have only one, and sometimes I have to delay playing it until I get a Momentum or a Steal or a Pulveriser to get rid of that Thorn Carapace. I've even lost matches because I played it too early.
Also, animated weapons (especially those with skills, for example, before my Gravity Nymph I often relied on animated Druidic Staffs with Adrenaline), and I did not have too many of them; losing one was quite often an irreparable casualty.