You need to be doing something beyond what's written on the tin, whether that's untapping artifacts, proliferating charge counters, or benefitting from card draw in some way, but put in just an ounce of extra work and the Engine gets a-rolling
But the most busted aspect is that all this comes from a colorless card, so it can be leveraged by any deck with a handful of cheap creatures
If you curve a 2-drop into Adeline on turn 3, your 2-drop will trigger it by attacking, giving you a free token right away
after all, not just any old soldier can pull the sword from its stone, you know
These experience counters can be put to use for the cost of three mana in order to create a Spirit token whose power and toughness are equal to the number of experience counters on their controller