It could mean cards that generate artifact tokens, or it could mean artifacts that are themselves token generators
then shuffle your library, your opponents shuffle their libraries even though they cant search
That said, while Exploration, Burgeoning, and Avenger of Zendikar are amazing in the right deck, theyre not essential to winning games and many decks dont actually need or want them
Many of the latest Vampire decks like to sacrifice their creatures for value
Bloomburrow even gave rabbits a full wave of support cards, so this unassuming 2-drop apparently has more friends than you'd assume
Similarly, if you choose the second mode and the creature loses its counters in response, you can't destroy it instead