User blog comment:Unmei Suiheisen/Platinum selection advice please/@comment-6350005-20170309201556

Other than Elizabeth, every plat in the game is very useful

Below are some units that I personally think are useful, ranked by their usefullness. Those are just opinion from my personal experience.

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UVU Earth deck - currently the most popular element because it has the best combination of passive and damage.

1) Ba'al 2) Remix Guna 3) Salix

UVU fire deck- less popular because of the selection of supports, but is slowing getting better with more useful non-plat fire units)

1) Upier 2) Meru 3) Metatron

UVU null deck- not recommended at the moment because very limited selection of units. Unless the Disgaea pack comes to NA, then Null deck may be the best element for quest deck in game)

1) 'Beatrice  '2) Swimsuit Idun 3) Ruprecht 

No top union FL player is using the water deck yet because of the lack of "Earth Guna" type of buff plat unit, and lack of water plat units.

1) Jeanne d'Arc 2) "Water Guna equivalent plat" 3) N/A

I hope this will help you decide what plat units you should get first! If you have more questions, come ask me in game ign: Staindoll