The Swarmweaver (Duskmourn: House of Horror)

Legendary Artifact Creature Ñ Scarecrow - When The Swarmweaver enters, create two 1/1 black and green Insect creature tokens with flying.
Delirium Ñ As long as there are four or more card types among cards in your graveyard, Insects and Spiders you control get +1/+1 and have deathtouch.