Cast Walk the Aeons with buyback by paying ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) and sacrificing three Islands, taking an extra turn after this one.
On your next draw step, use Life from the Loam's dredge ability by milling three cards, returning it from your graveyard to your hand instead of drawing.
In your main phase, cast Life From the Loam by paying ({1} magic symbol) ({G} magic symbol) , returning three Islands from your graveyard to your hand.
Play three Islands.
Repeat each turn until you have too few cards left in library to pay Life from the Loam's dredge cost.