Darksteel reactor win

: Put a charge counter on target artifact. Sacrifice this creature: Put two charge counters on target artifact.

Indestructible (Effects that say "destroy" don't destroy this artifact.) At the beginning of your upkeep, you may put a charge counter on this artifact. When this artifact has twenty or more charge counters on it, you win the game.

Other Myr creatures you control get +1/+1. , : Untap each other Myr you control.

: Add .