The Sun

Hexproof, Indestructible
The Sun enters with 1 fusion counter on it.
If The Sun has 0 fusion counters, transform it.
{x}{r/w}: Put X fusion counters on The Sun
{r/w}{r/w}{t}: Create X 1/1 colorless Hydrogen Atom
tokens, where X is the number of fusion
counters on The Sun.
Remove 5 fusion counters: Untap The Sun.
All Atom tokens have Defender and Fuse.
This card can be your commander.