Quick disclaimer: There are some cards in this list that will receive an EZA soon (should be up in 1-2 months), all these cards are listed and detailed.
On EZA Watch.
He will receive one of the best EZAs in the game, his Passive Skill becomes:
ATK & DEF +90% at start of turn; DEF +15% with each attack received (up to 60%).
His additional DEF is calculated separately, meaning at max stacks, he gets +204% DEF from his Passive Skill alone. On top of that, his Super ATK triple stacks +30% ATK and DEF, giving him +477% DEF if he Super Attacks every turn. His ATK base stat isn’t too bad either. Overall, one of the best tanks in the game, but you’ll have to wait for that EZA to drop.
He’s great for Pure Saiyans Teams, Vegeta’s Family, Majin Buu Saga, and even Resurrected Warriors--he won’t Link well with Resurrected Warriors, but he’s still a great tank. He also works great in any Super AGL line up and even Super Teams.
His awakening gives him 2 extra categories. On top of his high stats and good Passive Skill, the stacking ATK Super ATK is also pretty good and his Link Skills are awesome.
This Goku is a strong addition to Realm of Gods, Representatives of Universe 7, Universe Survival Saga and works fine in Kamehameha, Goku’s Family, and Pure Saiyans category Teams.
Vegeta is a very strong support after his EZA and works wonderfully with the new UR Resilient Will to Protect the Future - Trunks (Teen) (Future) S.TEQ in almost any category they’re both a part of. Because of his EZA, he’s a bit costly but well worth it. Vegeta is insanely flexible and works well in Vegeta's Family, Pure Saiyans, Future Saga, Time Travelers or Siblings Bond category Teams.
Goku is here for a very specific reason: His Leader Skill makes for some powerful Mono TEQ Teams that are great for certain events like Dokkan Punch Machine.
You’ll want to make sure you have strong TEQ Damage dealers to pair him up with like LR Golden Fist - Super Saiyan 3 Goku S.TEQ, LR Miraculous Outcome - Goku & Frieza (Final Form) (Angel) S.TEQ, or EZA UR Surpassing All - Perfect Cell E.TEQ, but this probably isn’t worth it if you already have a strong TEQ leader.
His Passive Skill becomes: Ki +3 and ATK & DEF +90%; "Shadow Dragon Saga" Category allies' ATK & DEF +30%.
He’s very strong in Shadow Dragons Saga, but has almost no use elsewhere. I’d only recommend him if you’re a very big fan of this category.
Also a Nuke Leader, this time for LR Full-Tilt Kamehameha - Super Saiyan 2 Gohan (Youth) S.INT and other INT Cards.
On EZA Watch.
He becomes an incredibly powerful ally as a floater on Androids Teams, but he’s only decent in Movie Bosses and Artificial Life Forms. Still, he’s not a bad pick if you love this category, but there are probably better options.
Versatility is the name of the game here. Goten will never be your number one choice for any category, but as a fairly easy to rainbow Card (he’s frequently featured on celebrations like this) with EZA stats, good stacking Defense on top of an orb changing Skill and nine categories, he’s an incredibly good pick.
If you are a new player still building up your Teams, consider picking him. He’s a very trustworthy ally after his EZA and if you are a veteran with a few copies of Goten and are feeling skeptical about Extreme Z-Awakening him, this guy at rainbow is useful as a floater for any category you might not have the perfect Team for.
EZA watch. This Card gets a very solid Passive Skill and becomes pretty strong. Part of his Passive Skill only activates against Majin Buu Saga Enemies, which makes him incredibly strong in niche situations. Overall, a decent pick.
Everything gets better after his EZA. He gets a great Leader Skill, stats, 70% chance to stun on Super ATK, and a high Critical Hit Rate. This is an amazing Card that can work well on four very popular category Teams: Super Saiyans, Movie Heroes, Pure Saiyans, and Goku’s Family.
It will take a lot longer for his EZA to drop in Dokkan’s global version but once it does, he becomes incredibly strong. For now, he’s a key player in Fusions and decent on Hybrid Saiyans, Majin Buu Saga, Youth, and Super Saiyans category Teams. After EZA, he’s able to tank and becomes a lot more reliable while doing even more Damage.