Adepta Sororitas Seraphim are elite warriors in a Sisters of Battle army. They have good armour and are effective in both fire fights and close combat. Their wings allow them to move a significant distance across the battlefield, and the Teleport ability allows them to strike from unexpected locations.
Adepta Sororitas Retributors provide good medium range anti-infantry capability. They are armed with Heavy Bolters that rain fire down on the unfaithful.
Adepta Sororitas Celestians are deadly at short range, their Multi-meltas effective against infantry and armoured targets alike. Often, their targets will be reduced to slag without an armour save.
The Adepta Sororitas Canoness leads her troops into battle, inspiring them to fight harder in engagements. She is armed with a Blessed Weapon, that makes her a formidable opponent in close combat.
C’Tan, The Deceiver is a living God of the Necrons. He glides over the battlefield causing death and disruption to his enemies, and providing leadership bonuses and inspiration to his troops. He is incredibly difficult to destroy, possessing a 4+ invulnerable save.
A Necron Aeonic Orb is a long ranged weapon of almost unparalleled power. It floats ominously across the battlefield searching for suitable enemy units to target with its Solar Flare, and a hit can reduce an unshielded Titan to dust in one volley.
The Necron Abattoir is a gigantic vehicle that walks on tentacle-like limbs which also serve as devastating weapons, flaying anything that gets in its path. Scarab Swarms stream from its interior, reducing smaller targets to carcases or wrecks in seconds. It has excellent armour, and the Living Metal special rule, making it incredibly difficult to destroy.
The Dark Eldar Razorwing Fighter is a nimble aircraft that can cause havoc if allowed to attack freely. Monoscythe Missiles and Splinter Cannon will make short work of infantry, and its Dark Lances are effective against even heavy armour.