Archmetin, Lord of Hospice

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

Spiders you control get +1/+1 and reach.

Delirium - During your upkeep, you may gain control of
a creature an opponent controls. If you do, its owner creates a 1/2 green Spider creature token. This triggers as long as there are four or more card types among cards in your graveyard.