Skithiryx, the Blight Dragon [The List] Cat Avatar if you have no cards

if you have no cards in hand

Set: Coldsnap Type: Enchantment Rarity: Rare Cost: {1}{R} Cumulative upkeep—Add {R}

Set: The List Type: Artifact Creature — Angel Rarity: Mythic Cost: {7} Flying

Eventually

Set: Legends Type: Legendary Creature — Elder Dragon Rarity: Rare Cost: {2}{R}{R}{G}{G}{W}{W} Flying

Skithiryx, the Blight Dragon [The List] Cat Avatar if you have no cardsSet: The List Type: Legendary Creature Phyrexian Dragon Skeleton Rarity: Mythic Cost: {3}{B}{B} Flying Infect (This creature deals damage to creatures in the form of 1 1 counters and to players in the form of poison counters.) {B}: Skithiryx, the Blight Dragon gains haste until end of turn. {B}{B}: Regenerate Skithiryx.