You have either ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) or eight ({E} magic symbol) available.
Steps
Cast
Aethertide Whale by paying eight ({E} magic symbol) if able or ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) otherwise.
When
Aethertide Whale enters the battlefield, it triggers, causing you to get twelve ({E} magic symbol) .
Activate
Aethertide Whale by paying ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) , returning it from the battlefield to your hand.
Repeat.
Results
Infinite LTB.
Infinite ETB.
Infinite storm count.
Metadata
In 86 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).