Battle Mage Secrets: Thaddius Brood getting an Equal Opportunity

This is a Tis But Scratches ruleset game so All units receive the Cripple ability at the start of the battle.

Consider including units with the Immunity ability in your lineup.

This is an Up To Eleven ruleset game so All units have the Amplify ability.

Use Thorns, Return Fire, and Magic Reflect to ensure your opponent suffers.

This is an Equal Opportunity ruleset game so All Monsters have the Opportunity ability.
Speed and HP is the trick here: higher speed will let you target enemy's low HP monster first, opening the way for your slower monsters to deal damage to higher HP enemy monsters. Keep lower HP monsters in front. Monsters who have two attack types should always be preferred.

Pos 1 Monster: Harklaw

Abilities:
Shield - Reduced damage from Melee and Ranged attacks.
Attack damage gets halved (rounded up), except attack 1 which deals 0 damage
Reduces the Thorns damage to 1
Cancel Redemption damage
Immunity - This monster is immune to negative status effects
Demoralize - Reduces the Melee attack of all enemy Monsters
-1 to melee attack, it cannot be less than 1

Pos 3 Monster: Skok Duskblight

Abilities:
Weapons Training - Adjacent monsters gain half this Monster's attack if they have no attacks themselves
Fury - This Monster does double damage to targets with the Taunt ability
Resurrect - When a friendly Monster dies it is brought back to life with 1 Health. This ability can only trigger once per battle

Pos 5 Monster: Venari Marksrat

Abilities:
Martyr - When this Monster dies, adjacent Monsters get +1 to all stats
Snare - When attacking enemies with Flying, removes the Flying ability and cannot miss.