That is almost a dune scorpion but who don't need any buff.. OP and redundant fot me even if the idea isn't bad
What are forest scorpion, arsenic and deathstalker compared to poison | deadly poison?
Let's compare:
| Deathstalker | Dune Dcorpion | Poison | Neurotoxin |
Cost | 2  | 3  | 1  | 4  |
Poisoning | 2 normal | 1 neurotoxin | 2 normal | 1 neurotoxin |
Need buff? | Yes | Yes | No | No |
Continuous poisoning? | Yes | Yes | No | Kind of yes |
I understand why dune scorpion and deathstalker shouldn't be able to be played in mono. However, this situation makes their use a bit more difficult and limit them to certain kind of combinations/duo/decks. Also deathstalker has access to nightfall whereas dune scorpion doesn't.
You will agree that in itself 1-6 poison damage won't kill any opponent. You need more. You need to be able to stall or to find a way to increase the poison/damage etc... Being able to play neurotoxin in itself would open new strategies which would be highly beneficial to Time players IMO.
Does it make this card OP? I don't think so. Does it make this card redundant? Would the existence of this card shut the use of dune scorpion down? This could be discussed. What do you guys think?