Aethertide Whale | Nissa, Worldsoul Speaker | Aether Refinery

Cards

You have either ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) or eight ({E} magic symbol) available.

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.