Wild buffalo are extremely healthy animals and they are absolutely not inferior to lions. A wild buffalo can defeat 2-3 lions and escape successfully.
But a fight with a hyena is a lot more difficult than with a lion. Hyenas often follow and attack wild buffaloes, waiting for the wound to become infected and the buffalo to gradually become exhausted.
Then there are the completely easy jobs when the hyena only has to face a sick buffalo. This great tactic helps hyenas take down many large animals.
Sometimes rhinos or hippos will also become a meal for hyenas.
Although the size of hyenas is quite small, their strength and bravery enable them to hunt large prey and successfully.