C337 Dark Companion Matching Ratio

"How am I supposed to test it? Flight-type Dark Companion cards are so rare, I can't afford one..." Han Xiao muttered to himself.

"Here, try this Lunar Griffin," Feng Yixiu offered, pulling out a gold-level Dark Companion card.

"Wow, bro, you're using a gold-level Dark Companion card? And it's a top-tier flight-type one at that? You're incredible!" Han Xiao exclaimed with envy