World Beyblade Organization by Fighting Spirits Inc.

Hey guys, I just started playing Burst, and I miss my Phantom Orion already! (sigh...) I have below a list of the Beys I currently own and some questions about which Beys to buy next. 


My Beys: (Hasbro)
Roktavor R2
Spryzen S2
Doomscizor D2
Wyvron W2
Valtryek V2
Kerbeus K2

I like Doomscizor and Spryzen best, being an Attack and Stamina player. I'm considering buying the following:
Drain Fafnir
Lost Longinus
Omni Odax

Which is best, and could you rate each from 1-5 stars? Thanks!
P.S. Is Hasbro even remotely playable in tournaments? I just moved and haven't had time to invest in some TT Beys.

1.Drain Fafnir dominate the metagame right now, 8 is very heavy, and Nothing can get very easy destabilised. 5/5 stars
2.Lost Longinus is very good in KOing. 3.5/5 stars
3.Xtreme is top-tier in attack (I am talking about Omni Odax's driver). 3/5 stars
4.Hasbro isn't too  good in normal tournaments, but there are existing Hasbro-only tournaments.
5.This should be posted in Beyblade Hobby Q&A Forum.
6.If you don't know, is illegal to put Takara Tomy layers and Hasbro drivers together.

Thanks Basalt Fox. I have had a hard time getting used to Burst. I think I'll get Fafnir for sure. I'll wait on the other two. Sorry about the wrong forum, I just joined the site yesterday. I'll be more careful next time!