Blackout was a powerful and violently loyal Decepticon, even a 4th-in-Command to Megatron after Starscream.

As shown in Transformers (2007), Revenge of the Fallen (2009), Dark of the Moon (2011)

Other available characters:

Optimus Prime - https://www.ebay.co.uk/itm/267691590326

Jazz - https://www.ebay.co.uk/itm/267692380714

Ratchet - https://www.ebay.co.uk/itm/267691633560

Starscream - https://www.ebay.co.uk/itm/267691511462