The mana value of a transforming double-faced permanent is the mana value of its front face, no matter which face is up
The reflexive triggered ability will trigger any time you lose control of that Equipment this turn, whether it's because the "until end of turn" duration ended or because someone else gained control of the Equipment with another effect
In every zone other than the battlefield, consider only the characteristics of its front face
You can see each of them in the image above: Go Go Tomago, Honey Lemon, Fred, Wasabi, Hiro Hamada and Baymax (in armoured form) are all shown
Exdeath, Void Warlock doesnt provide that level of immediate value, but build your deck properly and itll flip into Neo-Exdeath, Dimensions End the same turn it comes down and become a game-ending threat
While he is not donning his usual red garb and blue starry hat, we know a sorcerer when we see one, and this mouse will conjure up some serious cash if you decide to sell this enchanted card