She's not hard to beat. I just use an Ancient Gear Deck with Gravity Blaster to negate the effects of all Yubels. I just stall without summoning till GB gets in my hand but destroy her Mystic Tomato
No point in farming since she doesn't drop anything good. But scoring points is another. Whoever run this sit never consider the fact there are f2p as well & not everyone are p2w.
If you're new & need new cards then yea. You need cards that can Recycle your Gy & deck to draw like the pot of d or whatever it's called & recurring nightmare/Destroy Yubel. Once he gets that Destiny Hero Fusion monster & destroy terror incarnate, you're screwed.