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Sure, a top-decked StP sucks, but it's not worth playing around, especially since post-board they should be boarding StP out.
[edit]: fucked up my math.

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After rereading a bit, seems...

Going for a tendrils kill against D&T seems... dumb. Shouldn't you be going for Lab Man there?
Their out is StP, and Jitte if they already have counters, and you should be able to deal with those...