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.)

Dragon Trainer

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

Abrade

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

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.")

Sure Strike

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

Guttersnipe

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

Shivan Dragon

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

Mountain

Goblin Oriflamme

Attacking creatures you control get +1/+0.

Seismic Rupture

Seismic Rupture deals 2 damage to each creature without flying.

Thrill of Possibility

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

Brazen Scourge

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