Card levelling

• N card takes 8000 XP to reach maximum level (40)
• R card takes ? XP to reach maximum level (60)

Super Success gives 1.5x as much XP. Success++ gives 2x XP.

Notes

Rare card:

• 5124 XP gets you to level 34 and a bit

XP required to get from level X-1 to level X:

 2: 14
 3: 31
 4: 45
 5: 55
 6: 67
 7: 76
 8: 85
 9: 94
10: 103
11: 110
12: 119
13: 125
14: 134
15: 140
16: 148
17: 155
18: 161
19: 168
20: 174
21: 181
22: 187
23: 193
24: 199
25: 206
26: 211
27: 217
...
31: 240
32: 245
33: 251
34: 256
35: 262
36: 267