The back side isnt bad, although its not game breaking-either
This list also features four Gaston, which are likely there to keep those pesky Kuzcos in check
You should be able to build your deck to maximize the turtle without compromising it to settle for creatures that aren't playable
Zenos yae Galvus/ Shinryu, Transcendent Rival Zenos yae Galvus is a tricky creature to transform and the Shinryu, Transcendent Rival makes no difference in 1v1, though a huge dragon is usually relevant
Even the most commonplace cards in the set are worth 60 at a minimum, up to tens of thousands for rarer highlights
Ashnod the Uncaring With deathtouch and a love for sacrifice synergies, Ashnod the Uncaring rewards players who like turning artifacts and creatures into fuel for big payoffs