Lord Chaol Westfall of Anielle

Whenever you attack with one or more non-Gnome creatures, put a +1/+1 counter on
Chaol, 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 Chaol.

(Anim Pakal, Thousandth Moon)