Dragrens

Unexpected synergy with Grenadins and Dragons. While it can be pretty aggressive early, it really shines in its ability to pull 7-12 damage out of nowhere and finish a game, thus I consider it to be more Midrange than Aggro.

Cards you want to sacrifice:

Ticking Grenadin
Bait
Spark Hatcher
Tripwire Grenadin

Sacrifice Enablers:

Sol's Fury
Grenade
Burn Out
Kindling Carver

The Big Payoffs:

Sindok, Rage Incarnate
Steelbound Dragon

The deck thrives on its combos. But with so many sacrifice targets and so many sacrifice enablers, the "combo" isn't really just 2 cards. The point is to get to the big payoffs. For Sindok, Rage Incarnate, you just need to deal enough damage to get him into play. And if you sacrifice Bait, you get a Steelbound Dragon. So here are some combos you can pull off to either enable getting Sindok, Rage Incarnate into play or to finish off an opponent:

Ticking Grenadin + Sol's Fury = 7 damage
Ticking Grenadin + Burn Out = 8 damage
Ticking Grenadin + Grenade = 6 damage and 3 to an enemy unit

Bait + Sol's Fury = 4 damage and a 7/7 flyer
Bait + Burn Out = 5 damage and a 7/7 flyer (fast)
Bait + Grenade = 3 damage, a 7/7 flyer and 3 to an enemy unit

For dinking and dunking, use Tripwire Grenadin. Nothing quite like playing Tripwire Grenadin and sniping a 1 health unit on summon, then playing Grenade, targeting a 4 health unit and dealing 3 damage to it, and then 1 damage from the entomb to finish it off.

The deck is also quite resilient to wraths, with the exception of a decimated Shen-Ra Speaks, because of how cards like Spark Hatcher and Bait give you back units on death, and how Ticking Grenadin and Tripwire Grenadin deal damage on death.

So go wide if you want, and if you do, don't be afraid to swing with the team and pump them with a well-timed Relentless Pursuit.

Use Kindling Carver to keep cards coming. Crimson Firemaw is just a good card overall, and while the cheapening effect is less useful in this deck compared to others, it can still help make a free Burn Out, Crimson Firemaw, or make a 1-cost Bait.