Here are the requirements to upgrade Heroes
In blocks of 10 levels:
| Level | Crystals | Hero Medals | Coins |
|---|---|---|---|
| 1 to 10 | 136 | 10 | 22,500 |
| 10 to 20 | 342 | 20 | 72,500 |
| 20 to 30 | 522 | 30 | 145,000 |
| 30 to 40 | 702 | 40 | 245,000 |
| 40 to 50 | 882 | 50 | 412,500 |
| 50 to 60 | 1062 | 60 | 795,000 |
| 60 to 70 | 1350 | 70 | 1,910,000 |
| 70 to 80 | 2520 | 80 | 3,700,000 |
By individual level:
| Level | Crystals | Hero Medals | Coins |
|---|---|---|---|
| 2 | 10 | 500 | |
| 3 | 12 | 1,000 | |
| 4 | 14 | 1,500 | |
| 5 | 16 | 2,000 | |
| 6 | 18 | 2,500 | |
| 7 | 20 | 3,000 | |
| 8 | 22 | 3,500 | |
| 9 | 24 | 4,000 | |
| 10 | 0 | 10 | 4,500 |
| 11 | 30 | 5,000 | |
| 12 | 32 | 5,500 | |
| 13 | 34 | 6,000 | |
| 14 | 36 | 6,500 | |
| 15 | 38 | 7,000 | |
| 16 | 40 | 7,500 | |
| 17 | 42 | 8,000 | |
| 18 | 44 | 8,500 | |
| 19 | 46 | 9,000 | |
| 20 | 0 | 20 | 9,500 |
| 21 | 50 | 10,000 | |
| 22 | 52 | 11,000 | |
| 23 | 54 | 12,000 | |
| 24 | 56 | 13,000 | |
| 25 | 58 | 14,000 | |
| 26 | 60 | 15,000 | |
| 27 | 62 | 16,000 | |
| 28 | 64 | 17,000 | |
| 29 | 66 | 18,000 | |
| 30 | 0 | 30 | 19,000 |
| 31 | 70 | 20,000 | |
| 32 | 72 | 21,000 | |
| 33 | 74 | 22,000 | |
| 34 | 76 | 23,000 | |
| 35 | 78 | 24,000 | |
| 36 | 80 | 25,000 | |
| 37 | 82 | 26,000 | |
| 38 | 84 | 27,000 | |
| 39 | 86 | 28,000 | |
| 40 | 0 | 40 | 29,000 |
| 41 | 90 | 30,000 | |
| 42 | 92 | 32,500 | |
| 43 | 94 | 35,000 | |
| 44 | 96 | 37,500 | |
| 45 | 98 | 40,000 | |
| 46 | 100 | 42,500 | |
| 47 | 102 | 45,000 | |
| 48 | 104 | 47,500 | |
| 49 | 106 | 50,000 | |
| 50 | 0 | 50 | 52,500 |
| 51 | 110 | 55,000 | |
| 52 | 112 | 57,500 | |
| 53 | 114 | 60,000 | |
| 54 | 116 | 70,000 | |
| 55 | 118 | 80,000 | |
| 56 | 120 | 90,000 | |
| 57 | 122 | 100,000 | |
| 58 | 124 | 110,000 | |
| 59 | 126 | 120,000 | |
| 60 | 0 | 60 | 130,000 |
| 61 | 160 | 140,000 | |
| 62 | 165 | 150,000 | |
| 63 | 170 | 160,000 | |
| 64 | 175 | 170,000 | |
| 65 | 180 | 180,000 | |
| 66 | 185 | 190,000 | |
| 67 | 190 | 200,000 | |
| 68 | 195 | 220,000 | |
| 69 | 200 | 240,000 | |
| 70 | 0 | 70 | 260,000 |
| 71 | 210 | 280,000 | |
| 72 | 220 | 300,000 | |
| 73 | 240 | 320,000 | |
| 74 | 260 | 340,000 | |
| 75 | 280 | 360,000 | |
| 76 | 300 | 380,000 | |
| 77 | 320 | 400,000 | |
| 78 | 340 | 420,000 | |
| 79 | 360 | 440,000 | |
| 80 | 0 | 80 | 460,000 |