I checked the rulings, and no, theres no way to turn it back face up
An acorn-shaped symbol on the bottom of Unfinity cardsshown above in the style of the security hologram that's featured on applicable rares and mythic raresmeans that card isn't legal for tournament play
In addition to cards from the set, each Bundle comes with Bundle-exclusive accessories, including a special die to track your life total and a sturdy box to store everything in
The simplest option might be to just use Ashnod's Altar to turn them back into mana, use Numa to turn that mana into +1/+1 counters, and then to swing Tana again to make yet more saprolings
Wrap Up Phyrexian Tower | Illustration by Martin de Diego Sadaba I imagine theres two kinds of readers, and perhaps you can tell us which one you are in the comments below or on the Draftsim Discord
If your deck includes artifacts, consider how these cards will contribute to your artifact count, as this can impact their effectiveness