There are permanents on the battlefield that enter the battlefield untapped and produce at least ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Cast Mythos of Illuna by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , targeting anything but Scholar of the Ages.
In response, cast Radiate by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , creating copies of Mythos of Illuna that target each permanent besides the original target.
Resolve all copies of Mythos of Illuna besides the original, creating token copies of each permanent besides the original target.
The token copy of Scholar of the Ages enters the battlefield, triggering itself, returning Radiate from your graveyard to your hand.
Activate the token lands or other mana-producing permanents created in step 3 by tapping them, adding at least ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Repeat from step 2, doubling the number of copies created in step 3 each repetition.
Results
Infinite copies of all permanents.
Infinite magecraft triggers.
Infinite mana permanents on the battlefield can produce.
Infinite storm count.
Return all instant and sorcery cards from your graveyard to your hand.