You have 1 Dune Scorpion, and 1 Momentum. What's the chances you'll draw both? Very unlikely, especially near the beginning of the game if you need it. That's basically 2 card slots that you're taking up for cards you don't need and will very rarely help you. That's just my opinion.
It does really seems like that, and I would agree that the version without
Dune Scorpion is better than this one... but.... The point of having the
Dune Scorpion is not to get him on the start, nor to use him to deal great damage. It can only work in combination with momentum (in this deck), and his
Neurotoxin is just what I needed here. What is neurotoxin? Neurotoxin is the poison that kills you slowly, but it kills you faster when you "move"... so, I don't need this scorpion to even survive, nor I need him to do all the job alone. I need this little surprise at the half of the battle, when my opponent starts to take over the lead, (especially with the shields). The
Momentum, allows him to surpass any shield. With the combination of
Scarabs (witch I always have in this kind of long battles), this little being can make the opponent kill himself alone. Chances are small, but the power is great. As
Chimera, is not something I would use at the middle situations, I can use this thing, to put the opponent into a more dangerous game, where he doesn't only have to watch his damage, or HP, but to restrict his moves, as neurotoxin can rise to 8 in 2 turns, and maybe more... At that time, more times he uses
Dimensional Shield, the more he dies... If it doesn't improve my deck, than it surely does make it more fun. In addition,
Momentum can be used on other creatures, to make an easier finish, if needed...