Elkisis, Nest of the Swarm

Arthropods you cast cost {1} less to cast.
(Insects, arachnids and crustaceans are arthropods)
At the beginning of your upkeep, put X egg
tokens divided as you choose among any number
of creatures, where X is the number of nontoken
arthropods you control.
Whenever a creature with an egg counter dies,
create a 1/1 green Arthropod creature token for
each egg counter on that creature.