The 1,500 names the wiki uses across every creature article, each marked
as an attack or not. is_attack is read off the name and the numbers
written beside it — a summon or a self-heal is never one — so it is a
useful filter and a poor fact.

No element here: the same name carries different damage types on
different creatures, Energy Beam being energy for 28 of them and life
drain for the Demon, so the element is recorded against the creature's
use of the ability. /creatures?include=abilities.ability says which
creature takes which reading.