Infinite creature ETBInfinite creature LTBInfinite storm countInfinite +1/+1 counters on most creatures you control
How it works
Cast Ancestral Statue by paying 4.
Alela triggers, creating a 1/1 Faerie creature token.
When the Faerie enters the battlefield, Cathars' Crusade triggers twice, putting two +1/+1 counters on each creature you control.
When Ancestral Statue enters the battlefield, it and Cathars' Crusade trigger twice.
Resolve the Ancestral Statue triggers, returning it and the Faerie from the battlefield to your hand.
Resolve the Cathars' Crusade triggers, putting two +1/+1 counters on each creature you control.
Activate Workhorse four times by removing four +1/+1 counters from it, adding CCCC.
Repeat.
This brilliant loop hinges on casting Ancestral Statue over and over again, taking advantage of the static doubler Virtue of Knowledge to make every single entry trigger twice. Each iteration feeds Alela, Artful Provocateur's triggered ability to churn out a Faerie token, which in turn supercharges Cathars' Crusade to avalanche your board in an infinite sea of +1/+1 counters. Meanwhile, Workhorse sits on the battlefield acting as your mana battery, letting you strip away its own counters for colorless mana to endlessly pay for the Statue's casting cost and keep the chain reacting infinitely.