{@R} Anim Pakal, Thousandth Moon [The Lost Caverns of Ixalan][LCI 223]

Whenever you attack with one or more non-Gnome creatures, put a +1/+1 counter on Anim Pakal, then create X 1/1 colorless Gnome artifact creature tokens that are tapped and attacking, where X is the number of +1/+1 counters on Anim Pakal.