Nim Deathmantle + Ashnod's Altar + Mighty Mutanimals
Nim Deathmantle
Ashnod's Altar
Mighty Mutanimals
Infinite +1/+1 counters on creatures you controlInfinite creature ETBInfinite creature LTBInfinite death triggersInfinite creature sacrifice triggers
How it works
Activate Ashnod's Altar by sacrificing Mighty Mutanimals, adding CC.
When Mighty Mutanimals dies, Nim Deathmantle triggers, causing you to pay 4 to return Mighty Mutanimals from your graveyard to the battlefield and attach Nim Deathmantle to it.
When Mighty Mutanimals enters, it triggers, creating a creature token.
Activate Ashnod's Altar by sacrificing a creature token, adding CC.