Train

Syntax: train <statistic>.
Syntax: train <statistic> gold. (note: for hero+ only)
Syntax: train <hp/mana/move>. (note: trains in blocks of 10)

Progression of Practice-Point Costs to Train 10 Hit/Mana/Move Points:

010 011 012 013 014 016 017 019 021 023  
025 028 031 034 037 041 045 050 055 061
067 074 081 089 098 108 119 131 144 158
174 191 211 232 255 281 309 340 374 411
???

See also Practice Points, Statistics, and Trainers.