Infinite blinkingInfinite colorless manaInfinite copies of most legendary creatures you controlInfinite creature tokensInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggers
How it works
Cast Gerrard either from your hand or from the command zone by paying 2 and commander tax, if applicable.
Gerrard enters the battlefield, triggering Cadric, causing you to pay 1 to create a token copy of Gerrard.
Activate Ashnod's Altar by sacrificing the nontoken Gerrard, adding CC.
Gerrard dies, triggering its ability.
Holding priority, activate Ashnod's Altar by sacrificing the token Gerrard, adding CC.
The token Gerrard dies, returning the nontoken Gerrard from your graveyard to the battlefield.
Repeat from step 2.
Resolve all Gerrard triggers, exiling it if it's in your graveyard and returning all artifacts and creatures that were put into your graveyard this turn to the battlefield.