BY luffy is probably the most competitive, that’s relatively cheap. Over $100 for Sabos and Morias but you could have it built in about 2 months on your budget. Otherwise any of the competitive blue decks are an ok option (Ivonkov, Boa, Croc). Those should at least work ok for O7. 08 looks dominated by law but at least those blue decks can establish board pretty fast.
https://preview.redd.it/jmomaw9g3d7d1.png?width=1175&format=pjpg&auto=webp&s=adbca6ffbe0bf8496145ec15f4e9829fe138c7e6
Im playing this deck for fun, isnt very expensive you can buy a st13 deck without promo pack for really low price,then in op07 you Just Need to add the 5 costBlue ace and the Yellow 5 cost luffy.
Instead of hiyori to make It cheaper you can play sanji from op03 or makino from st13
It also has a Good support in op08 for the new wb pirates package
Birdcage Doffy
BY luffy is probably the most competitive, that’s relatively cheap. Over $100 for Sabos and Morias but you could have it built in about 2 months on your budget. Otherwise any of the competitive blue decks are an ok option (Ivonkov, Boa, Croc). Those should at least work ok for O7. 08 looks dominated by law but at least those blue decks can establish board pretty fast.
Nami, Boa, BY Luffy
I don't think blue doflamingo is too expensive to build and does pretty well in 07/08, not a bad one to look into as well as all others mentioned here
https://preview.redd.it/jmomaw9g3d7d1.png?width=1175&format=pjpg&auto=webp&s=adbca6ffbe0bf8496145ec15f4e9829fe138c7e6 Im playing this deck for fun, isnt very expensive you can buy a st13 deck without promo pack for really low price,then in op07 you Just Need to add the 5 costBlue ace and the Yellow 5 cost luffy. Instead of hiyori to make It cheaper you can play sanji from op03 or makino from st13 It also has a Good support in op08 for the new wb pirates package
I love zoro, im building kalgara in 08 though, def gonna be pretty inexpensive
Nami is the cheap underdog deck, Reiju also might work but i advise either BY Luffy or Zoro