Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Thrill of Possibility

As an additional cost to cast this spell, discard a card.
Draw two cards.

Seismic Rupture

Seismic Rupture deals 2 damage to each creature without flying.

Act of Treason

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

Mountain

Sure Strike

Target creature gets +3/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Dragonlord's Servant

Dragon spells you cast cost {1} less to cast.

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Dragon Trainer

When this creature enters, create a 4/4 red Dragon creature token with flying.

Involuntary Employment

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Kargan Dragonrider

As long as you control a Dragon, this creature has flying.

Goblin Oriflamme

Attacking creatures you control get +1/+0.

Guttersnipe

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Brazen Scourge

Haste (This creature can attack and {T} as soon as it comes under your control.)