Ral, Izzet Viceroy 

"A talented storm mage who has risen to the highest ranks of the Izzet League. Ral Zarek is brilliant, unpredictable, and daring; everything the Izzet value most. He invented a device that can track Planeswalker arrivals and departures on Ravnica, and devoted much of his time to study the ins and outs of interplanar travels."

Abilities

Prophetic Research - Cost 6
Level 1 - Pick one of the top 3 cards from your library. Fetch that card, then destroy the others.
Level 2 - Fetch that card and give it 2 mana, then destroy the others.
Level 3 - ...and give it 4 mana...
Level 4 - ...and give it 6 mana...

Rechargeable Blast - Cost 12
Level 1 - Deal damage to target creature equal to the number of spells in your graveyard times 1.
Level 2 - ...in your graveyard times 2.
Level 3 - ...times 2. Then the first spell in your hand gains that amount of mana.
Level 4 - ...in your graveyard times 3.

Flux of Genius - Cost 18
Level 1 - Create a Minor Flux of Genius Token.
Level 2 - Create a Flux of Genius Token.
Level 3 - Create a Improved Flux of Genius Token.
Level 4 - Create a Major Flux of Genius Token.

Tokens

Flux of Genius
Minor - [4 Shield] Support: Whenever you cast a Spell, this support deals 4 damage to any target.
Regular - ...to any target. Then, draw a card.
Improved - ...deals 5 damage to any target. Then, draw 2 cards.
Major - ...deals 6 damage...