Dies to Removal

Arashin Sovereign [mana]5GW[/mana]
Creature - Dragon
Rare
Flying
When Arashin Sovereign dies, you may put it on top or bottom of its owner's library
6/6

Necromaster Dragon [mana]3UB[/mana]
Creature - Dragon
Rare
Flying
Whenever Necromaster Dragon deals combat damage to a player, you may pay [mana]2[/mana]. If you do, put a 2/2 black Zombie creature token onto the battlefield and each opponent puts the top two cards of his or her library into his or her graveyard.
4/4

Pristine Skywise [mana]4WU[/mana]
Creature - Dragon
Rare
Flying
Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn.
6/4

Harbinger of the Hunt [mana]3RG[/mana]
Creature - Dragon
Rare
Flying
[mana]2R[/mana]: Harbinger of the Hunt deals 1 damage to each creature without flying.
[mana]2G[/mana]: Harbinger of the Hunt deals 1 damage to each other creature with flying.
5/3

Boltwing Marauder [mana]3BR[/mana]
Creature - Dragon
Rare
Flying
Whenever another creature enters the battlefield under your controlm, target creature gets +2/+0 until end of turn.
5/4

Dragans!