Flying
When Niv-Mizzet enters, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.
Mana cost
W
U
B
R
G
Mana value
5
Printings
From
$0.75
EDHREC rank
#9000
Buy
Formats
Pioneer
Legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
3 May 2019
If the top ten cards of your library don't contain all ten color pairs, you choose as many cards as you can and put those cards into your hand.
3 May 2019
A "color pair" is exactly two colors. There are ten color pairs in Magic: white-blue, white-black, blue-black, blue-red, black-red, black-green, red-green, red-white, green-white, and green-blue.