
Aven Sunstriker | Creature | Bird Warrior | Flying
Double strike (This creature deals both first-strike and regular combat damage.)
Megamorph {4}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.) | John Severin Brassell

Battle Mastery | Enchantment | Aura | Enchant creature
Enchanted creature has double strike. (It deals both first-strike and regular combat damage.) | Viktor Titov

Dragon Hunter | Creature | Human Warrior | Protection from Dragons
Dragon Hunter can block Dragons as though it had reach. | Johannes Voss

Dromoka Captain | Creature | Human Soldier | First strike
Whenever Dromoka Captain attacks, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.) | Matt Stewart

Echoes of the Kin Tree | Enchantment | | {2}{W}: Bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.) | Ryan Alexander Lee

Graceblade Artisan | Creature | Human Monk | Graceblade Artisan gets +2/+2 for each Aura attached to it. | Magali Villeneuve

Great Teacher's Decree | Sorcery | | Creatures you control get +2/+1 until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.) | Zoltan Boros

Orator of Ojutai | Creature | Bird Monk | As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Defender, flying
When Orator of Ojutai enters the battlefield, if you revealed a Dragon card or controlled a Dragon as you cast this spell, draw a card. | Zack Stella

Scale Blessing | Instant | | Bolster 1, then put a +1/+1 counter on each creature you control with a +1/+1 counter on it. (To bolster 1, choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.) | Matt Stewart

Shieldhide Dragon | Creature | Dragon | Flying, lifelink
Megamorph {5}{W}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Shieldhide Dragon is turned face up, put a +1/+1 counter on each other Dragon creature you control. | Chris Rallis

Silkwrap | Enchantment | | When Silkwrap enters the battlefield, exile target creature with mana value 3 or less an opponent controls until Silkwrap leaves the battlefield. (That creature returns under its owner's control.) | David Gaillet
3 LSV

Strongarm Monk | Creature | Human Monk | Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. | Viktor Titov

Surge of Righteousness | Instant | | Destroy target black or red creature that's attacking or blocking. You gain 2 life. | Marco Nelor

Cunning Breezedancer | Creature | Dragon | Flying
Whenever you cast a noncreature spell, Cunning Breezedancer gets +2/+2 until end of turn. | Todd Lockwood

Enduring Scalelord | Creature | Dragon | Flying
Whenever one or more +1/+1 counters are put on another creature you control, you may put a +1/+1 counter on Enduring Scalelord. | Clint Cearley

Dromoka Monument | Artifact | | {T}: Add {G} or {W}.
{4}{G}{W}: Dromoka Monument becomes a 4/4 green and white Dragon artifact creature with flying until end of turn. | Daniel Ljunggren

Ojutai Monument | Artifact | | {T}: Add {W} or {U}.
{4}{W}{U}: Ojutai Monument becomes a 4/4 white and blue Dragon artifact creature with flying until end of turn. | Daniel Ljunggren