Mandatory Training

Soldiers you control have first strike, if you
control two enchantments named mandatory
training they have vigilance, if you have three
they have flanking, if you have four they have
+1/+1.
Creatures you control are soldiers.
Part of the Imperial education is mandatrory basic
training until adulthood is reached. Adulthood
is reached at 25 real training starts at the age of 10.