gatherer logo
Diamond Knight

Card Name

Diamond Knight

Mana Cost

3

Type

Artifact Creature – Knight

Rarity

Uncommon

rules Text

Vigilance (Attacking doesn't cause this creature to tap.)As Diamond Knight enters the battlefield, choose a color.Whenever you cast a spell of the chosen color, put a +1/+1 counter on Diamond Knight.

Legal Formats

Commander, Explorer, Historic, Legacy, Modern, Pioneer, Vintage

Not Legal Formats

Alchemy, Brawl, Pauper, Standard

Rulings

(7/12/2019)
You must choose one of the five colors of Magic as Diamond Knight asks you to choose a color. You can't choose "artifact," "colorless," or "chartreuse."
(7/12/2019)
If you somehow control a Diamond Knight for which no color was chosen, its last ability will never trigger.
(7/12/2019)
Diamond Knight's ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.