Chroma, Sentient Spark

Chroma, Sentient Spark enters the battlefield
with X charge counters on it.
Each artifact creature you control gets +1/+1 for
each charge counter on it.
Remove a counter from Chroma: Choose one -
• Put a charge counter on another artifact.
• You get {e}, then you may pay {e}{e}{e}{e}{e}.
If you pay, add {w}{u}{b}{r}{g}.