Dragon Mage

Flying
Whenever this creature deals combat damage to a player, each player discards their hand, then draws seven cards.

Demanding Dragon

Flying
When this creature enters, it deals 5 damage to target opponent unless that player sacrifices a creature of their choice.

Archwing Dragon

Flying, haste
At the beginning of the end step, return this creature to its owner's hand.

Dragonborn Champion

Trample
Whenever a source you control deals 5 or more damage to a player, draw a card.

Atarka, World Render

Flying, trample
Whenever a Dragon you control attacks, it gains double strike until end of turn.

Destructor Dragon

Flying
When this creature dies, destroy target noncreature permanent.

Ancient Bronze Dragon

Flying
Whenever this creature deals combat damage to a player, roll a d20. When you do, put X +1/+1 counters on each of up to two target creatures, where X is the result.