With a roar, and a twist of feline agility, Aridha is back on her paws and bounding across the boat directly at Shoalar! She barrels into him, raking a claw down his front with force sufficient to knock a grown man prone...which would put him in a very bad spot indeed...
(Half move to get back to feet, then move to D9. This is 20', sufficient to Pounce! If her claw attack hits, Shoalar must make a Str save at DC 13 or be knocked prone. If he goes prone, Aridha gets her Bonus action bite attack...which I will roll now, just in case. Disregard the bite if he succeeds the save, or if her claw misses.)
Claw: [roll0] for [roll1]
Bite: [roll2] for [roll3]
(Note - If Shoalar is down before Ari moves, she does the same thing against Pike.)