On top of being able to buy strength, speed, endurance and perception boosts you're also able to train them. Any words from any RP you get involved in can be used as training. The table below works for the word counts of all stat training, individually. Please note that for each +1 you train you must also pay 500 credits.
0 - 1: 100 Words
1 - 2: 250 Words
2 - 3: 500 Words
3 - 4: 750 Words
4 - 5: 1,000 Words
5 - 6: 1,250 Words
6 - 7: 1,500 Words
7 - 8: 1,750 Words
8 - 9: 2,000 Words
9 - 10: 2,250 Words
10 - 11: 2,500 Words
11 - 12: 2,750 Words
12 - 13: 3,000 Words
13 - 14: 3,250 Words
14 - 15: 3,500 Words
15 - 16: 3,750 Words
16 - 17: 4,000 Words
17 - 18: 4,250 Words
18 - 19: 4,500 Words
19 - 20: 5,000 Words
There is no going from 20 to 21 as only half angels or full angels can be 21 or above in speed (unless it's a human with Swift who is instantly put to +25) and only half and full Demons (With the exception of Saiyans) can be 21 and above in strength. All half angels start out at +21 speed and SC's DO NOT count towards a boost in speed. Only through training or buying speed boosts can a half-angel up their speed (24 is the max). This goes for half demons attempting to train up their strength. For those needing to train their speed and strength from 21 and higher the following word counts must be met, and the one training must pay 2,500 credits for every +1 they want.
21 - 22: 7,000 Words
22 - 23: 8,500 Words
23 - 24: 10,0000 Words
Please note that these word counts and the credit costs for training are subject to change at any given time at the staff's discretion.