Activate Food Chain by exiling Misthollow Griffin, adding {U}{U}{U}{U}{U} that can only be spent to cast creature spells.
Cast Misthollow Griffin from exile by paying {2}{U}{U}.
Repeat.

Infinite colored mana that can only be spent to cast creature spells

Infinite creature ETB

Infinite creature LTB

Infinite storm count

Food Chain

Misthollow Griffin

Activate a basic Island by tapping it, adding {U}.
Activate Earthcraft by tapping Misthollow Griffin, untapping a basic Island.
Activate a basic Island by tapping it, adding {U}.
Activate Phyrexian Altar by sacrificing Misthollow Griffin, adding {1}.
When Misthollow Griffin dies, Brenard triggers, exiling Misthollow Griffin from your graveyard and creating a token copy of it that is a 1/1 Food Golem artifact creature token.
Activate Earthcraft by tapping the Misthollow Griffin token, untapping a basic Island.
Activate Phyrexian Altar by sacrificing the Misthollow Griffin token, adding {1}.
Cast Misthollow Griffin from exile by paying {2}{U}{U}.
Repeat.

Infinite creature sacrifice triggers

Infinite death triggers

Brenard, Ginger Sculptor

Earthcraft

Phyrexian Altar

Activate Phyrexian Altar six times by sacrificing six additional nontoken creatures, adding {4}{U}{U}.
Cast Misthollow Griffin by paying {2}{U}{U}.
Activate Blade of Shared Souls' equip ability by paying {2}, attaching it to Misthollow Griffin.
Blade of Shared Souls triggers, causing Misthollow Griffin to become a copy of Gerrard.
Put Misthollow Griffin in the graveyard due to the legend rule.
When Misthollow Griffin dies as a copy of Gerrard, it triggers, exiling itself and returning all other artifact and creature cards put into your graveyard this turn to the battlefield.
Repeat.
If you control a seventh additional nontoken creature, you may sacrifice it as well each loop to get infinite colored mana.

Infinite colored mana

Gerrard, Weatherlight Hero

Blade of Shared Souls

Combos with "Misthollow Griffin"