After more testing, let me give some constructive feedback on why this scorpion is not that great.
First thing, its slow, as any other deck that requires all combo cards available to start working. It is also more prone to bad draws as combos are required to be drawn in the predetermined order.
Now, you need to pick your buff to be able to use the card. Momentums and Eclipse are the first natural choices.
Momentum / Deathstalker deck is heavily countered by lobo and rewinds (along with damaging creature control cards). And thats "you lost at loading screen" counter. Rewind is especially painful here as you get your creature back that is completely useless with that buff card you just lost.
Eclipse is not affected by rewinds, and has an advantage that you only really have to draw one of those (providing no perma control) for all your scorpions. But if you buff it with eclipse, you get countered by every possible control in the game.
Really, I see no advantage in taking this as opposed to good ol' fashioned poison decks. It is slower, it is more prone to bad draws, and takes more cards to setup as for every scorpion you need its buff.
It is easy to compare its damage directly to
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deck. Chrysaora/Physalia take one card to do 1 poison, scorpion takes 2 cards to do 2 poisons. Both are duo decks, but
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deck works much smoother and faster (not to mention it uses element that has pretty awesome stalling cards + Purify). If Puffers are getting their deserved buff, Deathstalker is definitely not the card you want to build deck around.
And just to mention: Blessings are slowest of all buff cards, and if you really want to use
, there are tons of better cards to buff with +3|+3. Chaos Power is unreliable, but open a gate for introducing
cards which are powerful as hell. But again, if you're gonna use those, you're probably better off without Deathstalkers.