To train, you must type a certain ammount of words, depending on the rank of the Jutsu. You can learn any jutsu there is in the Naruto world, as long as it is not overpowered for your character to learn it. For example, you can't have a Genin learn Impure World Ressurection, unless he is exceptionally powerful in Ninjutsu type AP stats. So, this is what we are going to do.
Training
E - 100 Words
D - 200 Words
C- 300 Words
B - 600 Words
A - 800 Words
S - 1000 Words
Summoning Jutsu Training Guide
E - 200
D - 300
C - 400
B - 700
A - 900
S - 1100
More rules will be added as we go on