Battle Mage Secrets: Counterspell amplified by Grandmaster Rathe

This is an Aim True ruleset game so Melee and Ranged attacks always hit their target.
Blind, flying, dodge are useless. This Ruleset doesn't give Ranged monsters the ability to attack from the first position. Choose higher speed or higher health combined with high damage output. Return Fire ability is great in this ruleset.

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.

This is a Counterspell ruleset game so All units receive the magic reflect ability at the start of the battle. Enemy units that attack with magic receive damage back.

Pos 1 Monster: Blinding Reflector

Abilities:
Magic Reflect - When hit with Magic damage, does reduced Magic damage back to the attacker
Deals damage equivalent to the attacker's damage divided by 2, rounded up. The damage is reflected even if the attacker does not hit
Blind - All enemy Melee & Ranged attacks have an increased +15% chance of missing their target.

Pos 3 Monster: Soul Fiend

Abilities:
Swiftness - It gives all friendly Monsters +1 increased Speed.

Pos 5 Monster: Jared Scar

Abilities:
Bloodlust - Every time it defeats an opponent, it gets +1 to all stats
In the Reverse Speed ruleset, -1 to Speed
True Strike - This monster's attacks cannot miss
Blind doen't affect monster with True Strike
Piercing - If Melee or Ranged attack damage is in excess of the target's Armor, the remainder will damage the target's Health