Magic: The Gathering
Magic: The Gathering is a trading card game by Wizards of the Coast. Considered to be the original trading card game, it has on a few occasions included characters from the Transformers franchise, as well as other Hasbro franchises such as G.I. Joe and My Little Pony.
Merchandise
Alongside other Hasbro related crossover cards, such as Nerf War and Sword of Dungeons and Dragons, Grimlock was included. A double-faced card that was "Silver Border" (not legal in sanctioned events, but fine for casual play), Grimlock, Dinobot Leader could "convert" into Grimlock, Ferocious King by "Converting" a Transformers toy you have to it's other mode. Notably, unlike many similar double-faced cards, Grimlock "becomes" his other form, rather than "transform" to it, most likely for the sake of trademarks.
- Grimlock, Dinobot Leader / Grimlock, Ferocious King
Heroes of the Realm
Every year, Wizards of the Coast would give teams specific Magic: The Gathering cards for their teams efforts, such as for their work on a team or a project.<ref>https://www.youtube.com/watch?v=4WNBRWoHq9E Gavin Verhey from Wizards of the Coast explains Heroes of the Realm.<ref> For the 2018 Heroes of the Realm, the team behind the Transformers Trading Card Game were given a specific card called "Optimus Prime, Inspiring Leader" which is a Magic card on the front side and a Transformers Trading Card Game card on the opposite side. Although presumably, they are meant to be two separate things, the Magic: The Gathering side has an ability to "Flip target Permanent to it's other face", (which might include itself, although how it's other side would work in a game of Magic is unknown).
- Optimus Prime, Inspiring Leader
