A quick takeaway:
Researching the effectiveness of Song of Sinew.
Did a quick run of 15 piles.
Most of the hands drawn have 2+ 6 attacks.
Roughly 2.7 per hand in this run.
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Case Study: Statistical play
The “value” of the song of sinew is more than just the reviewed card.
If you have a pulping/wild ride in hand. You are hoping to call on these cards:
0-3 Skull Crack (get an extra pitch to claw for 3)
3 Beast Within (extra card)
0-3 Sea Leg (rum)
If you have 12 of the above, you have:
3 - about 20%
9 - about 49%
to find at least one for further value play.
Other use can also be sifting the cards in the right setup for next turn plan.