2x Ahn-Crop Crasher
Three drop with haste that can get around blockers.
4x Bomat Courier
One of the best cards to use early to net you cards when you no longer have much in your hand, as well as an effective way to discard some Earthshaker Khenra for later. Also, a good cheap Defender late game that can net you some cards after a block before the damage step.
3x Earthshaker Khenra
Great card due to its eternalize ability, its also good to prevent blockers early game.
4x Goblin Chainwhirler
Great card with first strike that deals damage to everything your opponent has as well as themselves, this is great for token removal against History of Benalia if followed up with a Sac of Fanatical Firebrand
4x Hazoret the Fervent
A game winner that can be used to discard for damage, great to be used late game with Earthshaker Khenra or to discard other copies of itself to ping a player for 2 damage. this card can win games because its indestructible and is extremely hard to remove for a lot of players.
2x Kari Zev, Skyship Raider
Good for early game when the opponent may not have creatures out, needs 2 cards to block and always creates a 2/1 token to attack with it. Because of the Legendary Rule, I only play with 2.
2x Rekindling Phoenix Standard Aggro Staple these days, unless its exiled or its resulting token is destroyed. card that cannot be blocked easily due to its flying. If playing against a black heavy deck, it might be best to sideboard out the Glorybringers for these.
4x Soul-Scar Mage
Great 1 drop that puts the pressure on Rekindling Phoenix, Hazoret and Glorybringer by using burn spells to give a permanent -x/-x on the creature to make them harmless, the Prowess ability can be stacked and using this strategy after the opponent declares blockers can help remove pesky cards from the board.