Big Brother Jaume shrinks down to normal size before the muscles under his skin bunch and writhe like maddened snakes and his form grows large again.
He moves with almost the same grace as his smaller self but with all the more raw power. His hands flash out at the dog things, doing their deadly work.
Spoiler
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enlarge, flurry of blows, extra attack +1 ki, power attack. ki strike.
Target Dog #1 unless it drops and then the second.
to hit - (1d20+8)[19]
to dam - (1d10+9)[17]
to hit2 - (1d20+8)[20]
to dam2 - (1d10+9)[14]
to hit3 - (1d20+8)[24]
to dam3 - (1d10+9)[17]