This will be interesting to see how they will change the poison types when they get inflicted, neurotoxin turns it yellow, would this add a second "marker" or just change it a little, like a small ring around the existing marker.
on another note, would the poison counters be stacked with other poison counters, so combining this with say dune scorp or deathstalker would quickly rack up the poison? it sounds like a tough deck to beat.
it is a very original card idea, nice work