The number of nontoken creatures you control plus the number of creature cards in all graveyards is at least nine.
Mana Needed
({7} magic symbol) ({B} magic symbol) at most available.
Steps
Activate
Phyrexian Altar twice by sacrificing
Scholar of the Ages, adding ({B} magic symbol) .
Repeat step 1 for each other nontoken creature you control.
Cast
Rise of the Dark Realms by paying ({7} magic symbol) ({B} magic symbol) ({B} magic symbol) , returning all creature cards from all graveyards to the battlefield under your control.
When
Scholar of the Ages enters the battlefield, it triggers, returning
Rise of the Dark Realms and up to one other instant or sorcery to your hand from your graveyard.
Repeat.
Results
Return all instant and sorcery cards from your graveyard to your hand.
Infinite LTB.
Infinite ETB.
Infinite colored mana.
Infinite sacrifice triggers.
Infinite death triggers.
Infinite storm count.
Infinite magecraft triggers.
Put all creature cards from all graveyards onto the battlefield under your control.