- Review Hasbro Siege Transformers August 28, 2020August 31, 2020 Hasbro Transformers Siege Spinister + Giveaway! Posted By: Tec 3rd Party, Masterpiece, reviews, TMReviews, Transformers, YouTube Liked it? Take a second to support TF-Prototype on Patreon! Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)