({1} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) , plus an additional ({1} magic symbol) available if Mystic Reflection was not foretold available.
Steps
Cast Mystic Reflection by paying ({1} magic symbol) ({U} magic symbol) , causing the next creatures or planeswalkers to enter the battlefield this turn to enter as copies of Scholar of the Ages.
Activate Homarid Spawning Bed by paying ({1} magic symbol) ({U} magic symbol) ({U} magic symbol) and sacrificing Scholar of the Ages, creating seven token copies of Scholar of the Ages.
Each of the newly created Scholar of the Ages tokens triggers, returning Mystic Reflection and up to thirteen other instant and/or sorcery cards from your graveyard to your hand.
Activate Phyrexian Altar six times by sacrificing six Scholar of the Ages tokens, adding ({3} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Repeat.
Results
Infinite colored mana.
Infinite creature tokens.
Infinite death triggers.
Infinite ETB triggers.
Infinite magecraft triggers.
Infinite recursion of instants and sorceries from your graveyard.