In Pokémon Ultra Emerald, you can refer to the following for how to match the moves of Coward in Pokémon Ultra Emerald 5.4:
Recommended moves for timid insects: hit the parasitic leech head-on to defend the provocation.
The magical skill Parasitic Leech greatly enhances the survivability of warriors. Its appearance makes armored warriors the strongest support. After the characteristic danger avoidance is triggered, you can force the player to withdraw and replace him with Hai Huang Ya. With the support of the parasitic leech's blood-sucking power, Hai Huang Ya is simply invincible, or it can be even more invincible if he replaces it with the White Ghost Dragonfly Dragon! Moreover, the armored warrior's defense is inherently high, and combined with the parasitic leech, he can become an excellent shield pet.
