Harbinger Celestia

Harbinger Celestia is a legendary neutral minion card, from The Boomsday Project set.

Strategy
While this card has very good stats with Stealth, its card effect much more often than not puts it to waste. She effectively behaves exactly like a Mirror Entity but without the Secret part, which makes it incredibly easy to play around by dropping a weak minion. The only time this card will come to be useful is if your opponent is in topdeck-mode and has no minions or only big ones or against extremely spell-heavy decks like Spell Hunter. However, such a situation is highly unlikely and matchup-specific, and as a result this is a very poor card overall.

While you could theoretically negate its negative effect with Silence, it does not only remove her Stealth, but Silence Priest usually has far better targets to choose from.

Lore
Celestia is unique to Hearthstone though she resembles a female Constellar, the mysterious species that belongs to who have some role in watching over developing world-souls.

Trivia

 * Her flavour text is a reference to My Little Pony: Friendship is Magic where the ruler of the fictional world shares the same name; Celestia. Incidentally, Celestia in Friendship is Magic also has a sister named Luna, shared with another Legendary from The Boomsday Project.

Patch changes

 * Added.