Niv-Mizzet Reborn (Serialized) [Multiverse Legends] Dragon Avatar Do this only once each

Do this only once each turn

where X is the number of basic land types among lands you control

Whenever equipped creature attacks

Set: March of the Machine Prerelease Promos Type: Creature — Dragon Rarity: Rare Cost: {5}{B}{B}{B} Convoke

each player exiles the top card of their library

Niv-Mizzet Reborn (Serialized) [Multiverse Legends] Dragon Avatar Do this only once eachSet: Multiverse Legends Type: Legendary Creature Dragon Avatar Rarity: Mythic Cost: {W}{U}{B}{R}{G} Flying When Niv Mizzet Reborn enters the battlefield, 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.