As an NPC, having a lot of skills is quite reasonable, right?

Years later, facing the gods he was about to defeat, Moen Kalix would recall that distant night when he and Arya confronted the mammoths. Back then, he was unknown, and he never imagined his first class, the Martyr, would be ridiculed by players as a brute. At that time, he wasn't the "Light Pollution Mage," "Poison-Spraying Healer," or "Melee Archer" that players on game forums denounced after joining other cults… Players cried and complained that Moen was cheating, with countless overpowered skills, and even able to create cards on the spot when encountering bosses he couldn't defeat! But what they didn't know was how much effort Moen had put in behind the scenes! Those countless sleepless nights, those days and nights… Hmm? You say the opposing evil god has a health bar? Let me see what his special mechanics are. Immune to physical and magical damage? Then let's slowly burn him to death with the "Hellfire Furnace," a fusion of the skills "Soul Burn" and "Nightmare Cage." You say you're immune to physical and magical damage, huh? Sorry, this is real damage. This novel is also known as "Your Skills, My Skills, Seem Different" and "After Skill Fusion, the Gods Said They Want to Buy from Me" [Game Transmigration, Fourth Calamity, Steam, Character Development]