Planeshift Tarkir
Aggressive. As a bonus action, the dragon can move up to its speed toward a hostile creature that it can see.
Flyby. The dragon doesn't provoke an opportunity attack when it flies out of an enemy's reach.
Siege Monster. The dragon deals double damage to objects and structures.
Multiattack. The dragon makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage 7 (2d6) lightning damage.
Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage.
Lightning Breath (Recharge 5–6). The dragon exhales lightning in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 15 Dexterity saving throw, taking 44 (8d10) lightning damage on a failed save, or half as much damage on a successful one.