JWA - Utasino and Stuns
28 hp left???
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Step 1, 3:
T.rex can be distracted, so debuff it as much as you can, and than bring your another creature to finish it.
Irritator has 4K hp that possibly cost you many turns to take it down, and I chose Bleeder.
Next, Gorgo has high atk, so you should deal it carefully.
Step 2:
Allo just like T.rex, nearly 4k hp and only attack moves.
T.rex Gen 2 is similar with T.rex.
Secondonto has immunity and high atk moves, so take it down as soon as possible.