An aggressive deck that pushes a lot of low-power minions and aims to get going as soon as possible. Most minions have 1 or 2 power, so positioning is very important. Starting hand is very important, try to have at least 1 of each threshold and minions to cast on turn 2.
Deathspeaker has double access to Genesis effects, allowing you to cast utility minions early and still have access to their effects from the cemetery.
Moon Clan Werewolf can be summoned very early (bypassing it's Mana and Threshold requirements) by sacrificing a Mortal. Keening Banshee and Scourge Zombies can be summoned when a Mortal dies, and Aramos Mercenaries can also be cast for 0. Use these minions to apply pressure to the opponent while utilizing various Genesis effects to prevent enemies from stabilizing.
Toolbox - Access to the Collection, grab Magic that would otherwise dilute the main Spell deck
Cemetery Rats - Puts cards in the grave for easier access with Deathpeaker's ability.
Arjaro Exorcist - Demon, Spirit, and aura hate.
Hemogoblin - Anti-healing. Could be dropped to 1 copy.
Land Surveyor - Draws from the Atlas. This deck plays aggressively, and you should be drawing from the Spellbook each turn, so minion helps you gram a Site for more Mana or board presence when needed.
Master Tracker - Anti-stealth. Stealth can be annoying, but a well timed counter to an ambush-in-waiting can be a great turnaround.
Redmane Hyena - Anti-recursion. The deck also has a few Demons, so so can banish one of them to get a small power boost.
Sisters of Avalon - Card cycle a useless minion for another card. Ideally, you discard Scourge Zombies to have it available for later turns.
Vandal Imp - Anti-Artifact. Remember that this effect IS random, so it gets harder to hit what you want if there are multiple Artifacts in the Realm. It can also hit your own Toolbox, so use that first if possible.
Vile Imp - An aggressive minion, with an aggressive Genesis effect.
Apprentice Wizard - Draws from the Spellbook. Helps maintain card advantage, represents up to 2 additional cards drawn thanks to Deathspeaker's ability.
Aramos Mercenearies - Can be cast for 0 mana (you still need to meet the 
requirement) by sending a card to the cemetery for use with Deathspeaker's ability.
Jack the Ripper - Minion-specific removal. Effectiveness is meta and deck dependent.
Mage Slayer - Minion-specific removal. Effectiveness is meta and deck dependent.
Monster Hunter - Minion-specific removal. Effectiveness is meta and deck dependent.
Moon Clan Werewolf - Can be brought out for free (bypassing it's Mana and Threshold requirements) by sacrificing a Mortal. Most Mortals have less than 3 power, and have Genesis effects that can be reused when cast from the cemetery with Deathspeaker's ability.
Angry Mob - Minion-specific removal. Effectiveness is meta and deck dependent.
Clamor of Harpies - Grabs minions from the enemy backline, or can be used to move a friendly minion for a flanking manoeuvre.
Hotwheel - Great for removing low power minions, or soften them before/after another unit attacks.
Keening Banshee - Can be summoned for 0 (you still need to meet the 
requirement) if a Mortal has died this turn.
Scourge Zombie - Automatically summons itself from the cemetery when a Mortal dies. This effect will only work if the Mortal was on a land site, so pay attention to your positioning.
Sir Morien - Blocks projectiles and brings with him 2 Foot Soldiers. Not an amazing target to recast from the cemetery, but better than nothing.
Archangel Michael - Extra reach with his Genesis ability, and a strikes ALL enemies at his location. Ward and Airborne makes him tough to remove, and recasting him can further remove a group of enemy units.
Legion of Gall - Anti-Collection. Small niche, effectiveness is very deck dependent.
Grand Master Wizard - Draws from the Spellbook.Helps maintain card advantage, represents up to 6 additional cards drawn thanks to Deathspeaker's ability.
Death Dealer - Kills ALL other minions, and very expensive to cast. Generally never used, but a panic button is a panic button.
Pact with the Devil - Draws 3 cards, have a Spellcaster cast this so you can recast the minion with Deathspeaker's ability to re-use it's Genesis ability.
Earthquake - Removal, and can move sites and enemies around.
Control - Disenchant, Dispel
Removal - Firebolts, Magic Missiles, Lightning Bolt, MInor Explosion
Utility - Teleport
Minion - Hellhounds