Goblin Instigator

When this creature enters, create a 1/1 red Goblin creature token.

Shock

Sure Strike

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

Sparktongue Dragon

Flying
When this creature enters, you may pay {2}{R}. When you do, it deals 3 damage to any target.

Fiery Finish

Fiery Finish deals 7 damage to target creature.

Volcanic Dragon

Spit Flame

Spit Flame deals 4 damage to target creature.
Whenever a Dragon you control enters, you may pay {R}. If you do, return this card from your graveyard to your hand.

Meteor Golem

When this creature enters, destroy target nonland permanent an opponent controls.

Mountain

Burning Sun's Avatar

When this creature enters, it deals 3 damage to target opponent or planeswalker and 3 damage to up to one target creature.

Charging Monstrosaur

Pyromantic Pilgrim

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

Viashino Pyromancer

When this creature enters, it deals 2 damage to target player or planeswalker.

Havoc Devils

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Kargan Dragonrider

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

Demanding Dragon

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

Lathliss, Dragon Queen

Flying
Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying.
{1}{R}: Dragons you control get +1/+0 until end of turn.