Card Box Powerups!
Awwww! Naughty kids! They broke my card box! Synthesize new cards for me and I will give you my treasures!
Upgrade cards to level 5, 10, 15, 20, 25 and 30 to win rewards
Lv.1 cards: Energy Stone Lv 3*1, Junior Drill*3;
Lv.5 cards: Romance Ring*1（7days bound）, Junior Drill*12;
Lv.10 cards: Romance Ring*7（7days bound）, Junior Drill*20;
Lv.15 cards: Junior Drill*99, Romance Ring +2*1（7days bound）;
Lv.20 cards: Venus Bracelet+2*2（7days bound）, Senior Drill*20;
Lv.25 cards: Venus Bracelet+3*2（7days bound）, Senior Drill*40;
Lv.30 cards: Venus Bracelet+4*1（7days bound）, Senior Drill*60;
Reward of each level can only be claimed once;
Items are bound.
Funny how you get more drills upgrading your card to lvl 15 than lvl 20
AH yes! After I calculate, Lv.20 gets 20 Senior Drills= 80 Junior Drills. And Lv.15 gets 99 Junior Drills. But, we still get better jewelry from lv.20.