My suggestions are based on what you mentioned you had with one booster. If you want vastly improve it, you may want to try something more specialized.
I would take out the Pink Diamond Yayois and replace them with Ryuugu Komachi Leader Iori IM/S14-028 R. It grants a universal buff to all music traits, and also can be used to pump yayoi's an extra +500 for a turn. I personally think pink diamond hibiki is a weak card because at most she can only become a 2/2 9k, even with encore i felt she had no sustainability by late game. (bakemono hitagi has a similar effect except she can reach 9.5k). I don't like "do-dai" in this deck. I would swap them out with "shiny smiles" you got from your booster. Another card I highly recommend you to run is LUCKY RABBIT, which is one of the best events that imas2 has imo. (if you play YGO, it's basically a pot of duality!)
There's probably a lot more options that'll make it better, but just experiment and see what works!
Thanks for the tip. For now i need the yayoi pink diamond for Mami pink diamond to keep in power. I do however got one of Iori, leader of RK, i'll find another card to replace for it, either the takane card (Which i think is good how it is), or one of the 0/0 vanilla cards. Now you mention that on Hibiki pink diamond, i guess it true, while ti does ahve ht same soul damage as haruka pink diamond, i guess it cant sustain as you need all the cards slot there. Guess i'll just add a 4th Haruka. I'll try otu switching out those climax card, i played the community today and i found out i never get the attack power or the hand to do anything late game.
My plans was to change my deck from Yellow/Red to
Red/Blue
Red/Green
I like how my red cards are working atm as it keeps me relatively stable at the later part of the game.
Blue i have no plans for it, but i wanna do it just for this card. IM/S14-097 - Battle Jupitier. It cost 1 stock, heals, gives 2000 power and it a counter, it sounds godlike.
Green i have plans for is completely dependant on Dotop TV, as i need to get at least 2 in my memory for it full effect in the deck. i only have 1 of the event card so it wasn't viable at time of deck building.
Green cards i planned on was
Dotop tv x4 - have 1
Iori, First rival - requires 2 dotop tv - have 2 - would become a 2/2 with 10k power
Azusa, Singing of Love - requires 1 dotop tv - have 2 - becomes a 2/1 with 9k power
Jupiter, Assassins from 961 Production - just because my local loves to salvage, alot, i realize that after playing alot of games
Ami, Futami Sister's Cutie - need 1 dotop - have 4 - just because? Iori leader is better though, as this is front center only
Kotori-san, Encore! - need 2 event(dotop) - have 0 >.< - becomes a 2/2 with 9k power with encore effect.
Just an idea im having, i plan to buy 2 more boxes and hope i get the green cards (aka dotop tv, just 2 more is enough for me) as i want to run a red/green.
Unless there is a way for the opponent to remove cards from memory to somewhere else.
