Nicol Bolas, the Ravager

Mana Cost: {1}{U}{B}{R}
Total Cost: 4
Type: Legendary Creature — Elder Dragon // Legendary Planeswalker — Bolas
Description: Flying
When Nicol Bolas enters, each opponent discards a card.
{4}{U}{B}{R}: Exile Nicol Bolas, then return him to the battlefield transformed under his owner’s control. Activate only as a sorcery. // +2: Draw two cards.
−3: Nicol Bolas deals 10 damage to target creature or planeswalker.
−4: Put target creature or planeswalker card from a graveyard onto the battlefield under your control.
−12: Exile all but the bottom card of target player’s library.
Power: 4
Toughness: 4
Colors: B,R,U