Combusting Compost (EDH / Commander)

Combos:

Slimefoot, Ashnod's Altar, Parallel Lives: pay 4 --> get 2 saprolings --> sacfrice to altar --> get 4 mana --> continue for infinite tokens and pings

Slimefoot, Ashnod's Altar, Illusionist's Bracers: same as above

Slimefoot, Ashnod's Altar, Hornet Queen, Nim Deathmantle: cast Hornet Queen --> gain 4 tokens --> sacrifice Hornet Queen and 1 token to Altar for 4 mana --> trigger Nim Deathmantle with the 4 mana --> Hornet Queen comes back --> continue for infinite tokens --> sacrifice 1 more token each time to get infinite mana for Slimefoot --> infinite pings

Slimefoot, Parallel Lives, Pitiless Plunderer, sac outlet: create two saprolings --> sac to outlet and ping with Slimefoot --> get four treasures --> create two saprolings --> repeat for infinte treasure

Slimefoot, Blood Artist/Zulaport Cutthroat, Yedora, Grave Gardener, Life and Limb, sac outlet: sacrifice a forest (that is also a saproling) somehow --> Slimefoot pings --> get back as a forest with Yedora --> it's a saproling because of Life and Limb so sacrifice it --> repeat for infinite pings

Yedora, Life and Limb, Ashnod's Altar: sacrifice a non-token creaturs to get 2 colorless mana --> Yedora returns the creature to the battlefield as a forest and saproling because of Life and Limb --> repeat for infinite colorless mana and infinite Slimefoot triggers

Life and Limb, Sporemound, sac outlet: create a saproling or play a land to trigger Sporemound and get a saproling --> that is also a land and triggers Sporemound again --> repeat for infinite saprolings --> sacrifice for infinite pings with Slimefoot or other effect depending on outlet

Saproling Cluster, Utopia Mycon/Ashnod's Altar, Species Specialist: sacrifice saproling to Mycon/Altar --> card and mana --> use those for Cluster --> repeat to filter entire deck

Rings of Brighthearth, Basalt Monolith: tap Basalt Monolith for 3 mana --> spend to untap it and pay 2 for Rings --> resolve and tap again --> untaps from Rings --> repeat for infinte colorless mana (can use for infinite saprolings)

Mana Reflection, Basalt Monolith: tap monolith for 6 mana --> pay 3 to untap --> repeat for infinite colorless mana

Argothian Elder, Mana Reflection, Wirewood Lodge: tap Elder to untap two lands --> use Wirewood Lodge to untap Elder getting extra mana from reflection --> repeat for infinite mana

Wirewood Lodge, Krosan Restorer, Seeker of Skybreak: when you have 7 cards in your graveyard tap Krosan Restorer --> untap Wirewood Lodge and 2 other lands --> tap Wirewood Lodge to untap Seeker --> tap Seeker to untap Restorer --> repeat for infinite mana (can use for infinite saprolings)

Seeker of Skybreak, Illusionist's Bracers, mana dork: tap dork for 1 mana --> tap Seeker to untap dork AND Seeker because of Bracers --> repeat for infinite mana (can use for infinite saprolings)

Mana dorks: Birds of Paradise, Manaweft Sliver, Paradise Druid

Sac outlets: Phyrexian Tower (mana), Ashnod's Altar (mana), Fungal Plots (life, card draw), Krav, The Unredeemed (card draw, life), Priest of Forgotten Gods (opponent life loss and sac, mana, card draw), Psychotrope Thallid (card draw), Thallid Soothsayer (card for mana), Utopia Mycon (mana), Viscera Seer (scry), Whisper, Blood Liturgist (creature in graveyard)

Vitaspore Thallid: when you have infinite tokens use half to give the other half haste and swing