Knollspine Dragon [The List] IDW Comics 2013 you may play those cards

you may play those cards without paying their mana costs

you may pay {5}{R}{R}

Set: Amonkhet Prerelease Promos Type: Legendary Planeswalker — Liliana Rarity: Mythic Cost: {3}{B}{B} +1: Create a 2/2 black Zombie creature token

Set: Apocalypse Type: Creature — Goblin Rarity: Uncommon Cost: {3}{R} Haste (This creature can attack and {T} as soon as it comes under your control

Knollspine Dragon [The List] IDW Comics 2013 you may play those cardsSet: The List Type: Creature Dragon Rarity: Rare Cost: {5}{R}{R} Flying When Knollspine Dragon enters the battlefield, you may discard your hand and draw cards equal to the damage dealt to target opponent this turn. It woke to find a vast world in need of a master.