Astral Cornucopia

Artifact

This artifact enters with X charge counters on it. : Choose a color. Add one mana of that color for each charge counter on this artifact.

Legalities

standardpioneermodernlegacyvintagepaupercommanderbrawl

Rulings (2)

2014-02-01 The last ability is a mana ability. It doesn't use the stack and can't be responded to.
2014-02-01 If you choose 1 for the value of X, Astral Cornucopia will cost to cast and enter the battlefield with one charge counter. If you choose 2 for the value of X, it will cost to cast and enter the battlefield with two charge counters, and so on.