
Utvara Hellkite | Creature | Dragon | Flying
Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying. | Mark Zug

Epic Experiment | Sorcery | | Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard. | Dan Scott

Niv-Mizzet, Dracogenius | Legendary Creature | Dragon Wizard | Flying
Whenever Niv-Mizzet, Dracogenius deals damage to a player, you may draw a card.
{U}{R}: Niv-Mizzet, Dracogenius deals 1 damage to any target. | Todd Lockwood

Rakdos, Lord of Riots | Legendary Creature | Demon | You can't cast this spell unless an opponent lost life this turn.
Flying, trample
Creature spells you cast cost {1} less to cast for each 1 life your opponents have lost this turn. | Vincent Proce

Rakdos's Return | Sorcery | | Rakdos's Return deals X damage to target opponent or planeswalker. That player or that planeswalker's controller discards X cards. | Daarken