| Rank | Cost | Skill Points |
|---|---|---|
| B -> A | 5 | +5 |
| A -> AA | 15 | +10 |
| AA -> S | 30 | +15 |
| S -> SS | 60 | +20 |
| SS -> SSS | 120 | +30 |
| SSS -> EX | 240 | +40 |
There are 7 ranks for the spirits in the game, ranging from B to EX, and each rank require a certain amount of spirit fragments to upgrade to the next rank. You can also use these fragments to "forge" the spirit, if you don't own them yet, and the cost depends on the starting rank of that spirit. Ranking up gives +atk/+def/+HP/+Skill points.
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| Tohka | Origami | Yoshino | Mana | Kurumi |
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| Kotori | Kaguya | Yuzuru | Miku | Ellen |
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| I. Tohka | Vánargandr | S. Tohka | Mayuri | Natsumi |
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| I.P. Yoshino | Mordred | Angel | Devil | Neptune |
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| Blanc | S.N. Kurumi | Mikoto | Kuroko | Noire |
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| Vert |