Actually, it doesn't look stupid at all. And congratulations on finding a solid poison deck by yourself. It's been done before of course, but don't let that bother you as 1) you discovered it by yourself and 2) you can't possibly know everything that's been done before you post a deck.
thispersonisagenius gives some good advice, but it really depends on what you're wanting. Your deck allows you to play more water cards, especially on turn 2 when you want to lay out all your chrysaora. His way lets you pile on the poison more and let's you add more expensive death cards like Bone Wall, but at the cost of only playing 1 water card per turn.
Another card you can consider using is Nova to get out turn 1 Chrysaoras. Something like below could work:
Hover over cards for details, click for permalink
4vj 4vj 4vj 4vj 52g 52g 52g 52g 52g 52g 52g 52o 52o 52o 52o 52o 52o 52q 52q 5i5 5i5 5i5 5i5 5i5 5i5 5i7 5i7 5i7 5i7 5i7 8pp
I threw this together quickly but it gives you the idea. If you could work out the quanta balance for 6 Novas plus Death & Water, you could even pack some other kinds of CC to diversify the kind of control you use (Reverse Time, Basilisk Blood, Lightning, etc.).