While it has frequently been maindecked, its also been a popular sideboard card, perfect for grinding out attrition-based post-sideboard games, such as the Kithkin deck Cedric Phillips piloted to a top 8 finish in PT Kyoto 2009: Creatures (20) Planeswalkers (4) Lands (25) Spells (11) Sideboard Nowadays, the idea of aggro decks slowing down and going bigger after sideboarding is commonplace, but Cedrics use of it here was especially futuristic for that time period
This means youre essentially a tokens deck, and you can run all of the support for token creatures and token doublers that youd like
But again, this will really vary
Life and Limb and Fungal Plots add powerful synergies by turning lands and saprolings into a constant source of growth
Ha!) All these ideas combine into a mono-black control deck with an Infect ender
So yeah, it's more/less a mixed boss monster for them (considering that it is more/less dependent on your Tokens, but can also stay around for a while)