I mainly tried to obtain the EXO LEs first because they’re my ults. I ended up collecting BoA as well, and then I tried to collect RV. Here’s my progress so far:

EXO-K: 6/6 (1 suho dupe, 4 baekhyun dupes, 2 chanyeol dupes, 2 kai dupes, 1 sehun dupe)

EXO-M: 3/3 (no dupes)

BoA: 3/3 (1 vocal dupe, 1 dance dupe, 1 rhythm dupe)

Red Velvet: 5/5 (1 joy dupe)

TVXQ: 3/4 (no dupes)

SNSD: 4/8 (1 taeyeon dupe)

SHINee: 1/5 (1 Minho dupe)

Kyuhyun: 1/3 (no dupes)

The cost? 500 dias for RP (too lazy to grind), the 300k RP I had saved for the card packs, selling the remaining C and B cards from the packs I bought, and selling 200+ fodder A cards. Total cost ~ 900k RP. I bought around 25 card packs. I probably wouldn’t have had to sell so many cards if I wasn’t also trying to simultaneously power up my top 5, which was Taeyeon, Taemin, and BoA from R1 to R10, EXO-M from R5 to R10, and Red Velvet from R15 to R30.

This is my first anniversary and I barely have any LE themes, so I went kind of crazy on the card packs. I now have a whopping total of 8 diamonds and 26k RP, as well as 581/1060 inventory space. Collecting EXO-K was extremely frustrating, I kept getting Baekhyun cards and no D.O. cards. I still managed to complete 4/8 sets, and I achieved my primary goals. Next goal: complete SHINee and SNSD!