Dragonslayer Armor

Vigilance, trample
Dragonslayer Greataxe —Whenever Dragonslayer
Armor deals damage to a Dragon, destroy that creature.
Dragonslayer Greatshield —{4},{t}: Dragonslayer
Armor is indestructible until the end of turn. If targeted by a spell or ability from a Dragon, gain hexproof and indestructible until the end of turn.