The Manhattan Project

When The Manhattan Project enters the battlefield, put 6 sleeper counters on it.

Remove 1 sleeper counter at the beginning of your upkeep phase, and when you cast your second spell each turn.
Once all sleeper counters are removed, sacrifice The Manhattan Project and search your library for one of the following cards, put into your hand, then shuffle.

•The First Sun
•The Second Sun
•The Final Sun