Gerrard, Weatherlight Hero + Molten Echoes + Phyrexian Altar

Gerrard, Weatherlight Hero

Molten Echoes

Phyrexian Altar

How it works

1. Cast Gerrard either from your graveyard or from the command zone by paying 2 and commander tax, if applicable.
2. Gerrard enters the battlefield, triggering Molten Echoes, creating a token copy of Gerrard with haste.
3. Put the nontoken Gerrard into your graveyard due to the legend rule.
4. The nontoken Gerrard dies, triggering its ability.
5. Holding priority, activate Phyrexian Altar by sacrificing the token Gerrard, adding one mana of any color.
6. The token Gerrard dies, exiling itself and returning the nontoken Gerrard from your graveyard to the battlefield.
7. Repeat from step 2.