I wish they'd redo the early LDs' Decks. Some of them are just unacceptably bad now. (Kaiba, Joey, Mako, Rex and Odion for example.) The Level 30 GX LD's have better decks than each of the characters I mentioned. (Heck, I'd say Bastion's Level 20 deck is better than most of those.)
We don't have any LD's that are practically ungrindable yet, there's no reason to think that would happen with a revamp of the older LD's. There is no excuse for a Level 40 Legendary Duelist to use a card like Battle Steer or Masaki the Legendary Swordsman.
Yubel Terror Deck works fine for Joey lvl 40:
Skill: My Name is Yubel
1x Yubel - Terror Incarnate
1x Yubel - The Ultimate Nightmare
3x Planet Pathfinder
3x Fire King Avatar Yaksha
3x Fire King Island
2x Union Attack
1x Secret Path to the Treasures
1x The Calculator
1x Gravekeeper's Vassal
1x Double Summon
Strategy: You either use FK Island or Monster effect to destroy Yubel in your Hand to SS Terror Incarnate. After that he can't do anything(he don't wizard it) and just Fusion Summon here and there his 2 Fusion Monsters.
It gives over 7k DA, with enough glossy/prismatic/destroyed Monster it gives 8k+.
Up to 2 Sangan can be used as substitute for 2 Planet Pathfinder(to search it out/Yubel/other cards) and Double Summon with Photon Lead(for Calculator).
When you don't have to combo for Yubel Destruction, either summon a FK in Attack Position or set(if you have) a Sangan. He don't attack if a) no 1800+ beater b) no dice or c) no Fusion + another 1800 beater.
True. I wouldn't mind, and in fact supports, the idea that the banlist should be only for PVP.
You can farm him with elements unite, either by summoning GG or not.
Only summon GG if he has three face up cards on the field that are not time wizard. This doesn't happen all the time, however.
Option 2, is if he has two face up monsters and one face down, you can just keep the three guardians on the field, but I recommend putting kazejin in defense as his thousand dragon + graceful dice could damage you over 500hp. Always keep Sanga and Suijin in attack. I highly recommend THTD as a fusion because it thins your deck and can provide enough points if you're using the non Union attack method. I can get 7000-8000 every time. I just use my basic farming deck, but you should be able to customize to your preferences.
He won't use Time wizard on the three guardians, oddly enough. I'm guessing the AI knows they can't attack, because Joey kept his monsters in attack until I summoned THTD. Riryoku + martyr is enough to get a direct piranha attack over 9999
Just confirming it works. My decks a little different. I use H-Heated Heart because after 120ish packs of Ultimate rising I haven't gotten a single passage but it still gets the job done. Forced ceasefire isn't supposed to be used but I was farming bastion and was too lazy to take them out.
If you want to get his attack higher, take out some of the life gain, you don't need it, you want to get the comeback victory bonus. But you can try to run a copy or two of murmur in the forest to bounce and reuse your field spell for extra counters