Originally Posted by
Nabterayl
You are, yes. Remember that everything modifies the model's own Strength - even Melee weapons like power fists. Although we sometimes speak of Melee weapons as having a Strength, the way Shooting attacks do, the truth is that they don't - as page 24 says, we reference "the attacker's Strength characteristic," not the weapon's (cf. page 14, "compare the weapon's Strength characteristic"). Melee weapons have no Strength at all, merely abilities that modify the user's Strength. Hence, the Scorpion's Claw doubles the exarch's Strength, and Crushing Blow (or whatever) increases the exarch's Strength +1. 3+1x2, in 40K math, is 7.