Your table seems a bit off. Did you make that art? Or did you grab it from someone else?
Also, how does this card work with momentum-affected creatures? A 'reactionary' based instant-kill card seems overpowered, but the fact that it only works on one use makes me think that this should be best served as a permanent or some other card that simply applies 'lots of poison' to the first creature to break open the bottle of chlorine -> leads to death. A nifty idea I suppose.
You need to do the following though in order for it to be accepted into the Crucible should you submit it for Curator evaluation:
-Add the
symbol after the card's cost in your table
-Place 'Permanent' before the word 'Shield' in your Type section of the table
-Cite the artist name and/or provide a link to the art source. Deleting that part of the table is improper formatting.
Just my advice.