Black Knight Optimus Prime AD-EX

As the sense of justice within Optimus Prime grows stronger, "Black Knight Optimus Prime", the reversed being that lives deep within him, also grows stronger. Optimus Prime must face this being, whenever he tries to have dialogue with his inner self. With the Nemesis Sword that can reverse time of substances with it's antimatter energy and the Sphere Shield, a transfer device, Black Knight Optimus Prime reveals itself as darkness in the world filled with light.

Centaurus Wolf Megazord (Power Rangers Mystic Force)

The Centaurus Wolf Megazord is one of the "villains" from the Power Rangers Mystic Force show which aired in 2006 based on the Japanese Super Sentai Series, Mahou Sentai Magiranger which aired between 2005 & 2006. In this series the Power Rangers became the Zords rather than pilot them.

In the show, Koragg combines with the Catastros zord to become the Centaurus Wolf Megazord. Koragg's original name is Leanbow and it is later revealed that he is the Red Rangers father.

Legacy Tigerzord

White Tigerzord Stats
Length: 80 ft
Weight: 330,693 lbs
Speed: 114 mph

The Legacy Tigerzord follows on in the Power Rangers Legacy line up with the Megazord and Dragonzord. As with the others it is a brand new mould based on the original toy released in 1994 for the second series of the Mighty Morphin Power Rangers.

Compared with the original it is slightly smaller with no electronics but sleeker and heavy with diecast metal parts, additionally its only accessory is the tail/sword so there aren't as many accessories to lose as there was with the original. This figure is also Zord Builder compatible, at least with the legs, so you can form a version of the Mega Tigerzord. At the time of writing, a Legacy version of the Thunder Megazord is due to be released early 2016 and will no doubt be compatible with the Legacy Tigerzord.

Arcee LG10 (Legends, 2015)

(Profile translated from the instruction manual)
LG-10 Arcee
Warrior
Profile
Don’t judge her strength on appearance alone, Arcee's presence is enough of a threat for her enemies. An angel amongst her companions, but a devil to her enemies. She vows to defeat her opponent's no matter the cost. This belief, combined with her combat and psychological training has turned her into the perfect hunter.
STR...8; INT... 6; SPD... 8; END... 5; RNK... 5; CRG... 7; FBL... 7; SKL... 9

Underbite (RiD, One Step Changer)

Function: Guard Dog
Profile
Underbite escaped with the rest of the Decepticon warriors. In vehicle mode uses his acceleration power to repel enemies and can instantaneously transform into beast mode allowing him to quickly move around. As Steeljaw the Decepticon Captain led the prison break, Underbite will follow his orders without question, pouncing on any target.

(Bio from the Takara Tomy release, TAV06)

Megatron (Combiner Wars)

There was a time when the name of Megatron was honored by many across Cybertron. But power inevitably corrupts, and none are so powerful as mighty Megatron. Long ago, he forgot he was a hero, and became nothing more than a tyrant. The war he launched eventually drained his home planet of life. Not even the death of a world could satiate his hunger for conquest.