You can concentrate on Flyers, which is a fun restriction, and gives you plenty of cheap, evasive bodies that further protect Raffine, like Esior or Gold-Forged Thopteryx
It will feel truly busted when you can pull that off, and it also means it has sort of an alternate mode where you turn it into Shatter sometimes when your creature goes unblocked
Theres no strict upper limit here either, but again, adding so many cards can water down your best spells and make your deck less consistent
It works particularly well with creatures that have strong cast triggers or enters abilities to repeat
The colors on this card are just stunning- turquoise, purple, and pink jewel tones set off with blacks and golds
You pay X mana, and then all your noncombat sources of damage deal X additional damage that turn