It's been awhile since we had any new Epic and Rare Hybrid's and it has mostly been legendary, unique, and apex hybrids that have been added. Also because of how the epic and rare tournament's have been the same creatures every time, with a chunk of the epic hybrids being outdated or unplayable with bad moves. I'll make a list of what JW The Game hybrids that can be added with the current creatures in the game (also to those with missing 1 partners to fuse with) and give them certain role that fits them.
Rares:
Glythronax: resilient- tank, counter attacker
Ophiacomimus: cunning and fierce- glass cannon, immunity, attack and run, evasion
Pelecanipteryx: pelecanimimus (cunning) + Hatzegopteryx: cunning and resilient- flock checker, double hitter, swap in shield
Priotrodon: prionosuchus (fierce) + dimetrodon gen2: fierce- shield breaker, rending, no escape, immunity
Parasaura: para + bonitasaura (resilient): tank, flock checker, shield and heal
Metriaphodon: metriacanthosaurus (fierce) + dimorphodon: Fierce- swap in bleeder, devourer, attack and run, destroy shield
Epics:
Suchoripterus: Fierce- bleeder, attack increaser, counter attacker, swap in bleeder, and no escape
Carnoraptor: wildcard- rend counter, damage decrease, cleans negative effects
Nundagosaurus: fierce and resilient- speed decrease and counter, armor pierce, bypass dodge
Erliphosaurus: cunning- speed increaser, damage de-buff, precise attack
Labyrinthosaurus: labyrinthodontia(cunning) argentinosaurus: cunning and resilient- nullifier, crit buffer, speed decrease, priority in damage reduction
Pachygalosaurus: pachyrhinosaurus (resilient) + Megalosaurus: fierce and resilient- stunning attack, armor pierce, counter attacker, armor increase, swap in
Diplosuchus: fierce and cunning - no escape, bleeder, shield breaker, damage reduction
Koolasaurus: cunning fierce- nullifier, heavy hitter, priority, no escape, glass cannon
Kaprodacthylus: fierce- attack buffer, counter attacker, shield breaker,